Jason Leffler

{{short description|American racing driver (1975-2013)}}

{{Use mdy dates|date=February 2025}}

{{Infobox NASCAR driver

|name = Jason Leffler

|image = Jason Leffler.jpg

|caption = Leffler at the circuit Autódromo Hermanos Rodríguez in 2008

|birth_name = Jason Charles Leffler

|birth_date = {{birth date|1975|09|16}}

|birth_place = Long Beach, California, U.S.

|death_date = {{Death date and age|2013|06|12|1975|09|16}}

|death_place = Chester, Pennsylvania, U.S.

|death_cause = Blunt force neck injury from racing accident

|height = {{Height|ft=5|in=3}}

|weight = {{convert|130|lb|kg|abbr=on}}

|awards = National Midget Auto Racing Hall of Fame inductee (2003)
West Coast Stock Car Hall of Fame (2015)
USAC Hall of Fame inductee (2018)

|achievements = 1997, 1998, 1999 USAC National Midget Series Champion
1998 USAC Silver Crown Series Champion
2002 Hoosier Hundred Winner
1999, 2005 Turkey Night Grand Prix Winner
1997 Belleville Midget Nationals Winner

|Total_Cup_Races = 73

|Years_In_Cup = 9

|Prev_Cup_Pos = 52nd

|Previous_Year = 2013

|Best_Cup_Pos = 37th (2001)

|First_Cup_Race = 2001 Daytona 500 (Daytona)

|Last_Cup_Race = 2013 Party in the Poconos 400 (Pocono)

|Cup_Wins = 0

|Cup_Top_Tens = 1

|Cup_Poles = 1

|Total_Busch_Races = 294

|Years_In_Busch = 12

|Best_Busch_Pos = 3rd (2007)

|First_Busch_Race = 1999 Kroger 200 (IRP)

|Last_Busch_Race = 2012 Great Clips 200 (Phoenix)

|First_Busch_Win = 2004 Federated Auto Parts 300 (Nashville)

|Last_Busch_Win = 2007 Kroger 200 (IRP)

|Busch_Wins = 2

|Busch_Top_Tens = 107

|Busch_Poles = 8

|Total_Truck_Races = 56

|Years_In_Truck = 7

|Best_Truck_Pos = 4th (2002)

|First_Truck_Race = 2000 Power Stroke 200 (IRP)

|Last_Truck_Race = 2012 Ford EcoBoost 200 (Homestead)

|First_Truck_Win = 2003 MBNA Armed Forces Family 200 (Dover)

|Last_Truck_Win =

|Truck_Wins = 1

|Truck_Top_Tens = 35

|Truck_Poles = 10

|module =

{{Infobox Champ Car driver|embed=yes

|Total_IRL_Races = 3

|Years_In_IRL = 2

|Best_IRL_Pos = 30th (2000)

|First_IRL_Race = 1999 Transworld Diversified Services 200 (Disney)

|Last_IRL_Race = 2000 Indianapolis 500 (Indy)

|IRL_Wins = 0

|IRL_Podiums = 0

|IRL_Poles = 0

}}

}}

Jason Charles Leffler (September 16, 1975 – June 12, 2013) was an American professional open-wheel and stock car racing driver. Leffler began racing in the open-wheel ranks, competing in the 2000 Indianapolis 500 before moving to primarily NASCAR competition. He died from injuries sustained in a 410 sprint car race at Bridgeport Speedway in Bridgeport, New Jersey.

Racing career

=Open wheel career=

Leffler began his career racing midget cars in the USAC series, where he won three consecutive midget championships from 1997 and 1999, as well as the Silver Crown series championship in 1998. He was the third driver to win three consecutive midget car championships.{{cite web|url=http://www.worthyofhonor.com/Inductees/Jason_Leffler.htm|title=Biography|publisher=National Midget Auto Racing Hall of Fame|website=WorthyOfHonor.com|access-date=January 22, 2018|url-status=dead|archive-url=https://web.archive.org/web/20070927032754/http://www.worthyofhonor.com/Inductees/Jason_Leffler.htm|archive-date=September 27, 2007}} He won the Hut Hundred and Belleville Nationals in 1997, and the Turkey Night Grand Prix and Copper Classic in 1999. He won his second Turkey Night Grand Prix in 2005.

Roger Penske met Leffler at the 1998 Hut 100. Leffler's success also caught the attention of Joe Gibbs Racing, a team which had previously signed Tony Stewart from the USAC ranks. Leffler joined the team in 1999 and made four starts in the Busch Series during the season with moderate success. At the same time, he also started a race in the Indy Racing League at Walt Disney World Speedway in the No. 5 Treadway Racing machine, but finished last after crashing early in the race.

Leffler made his first, and only, start in the Indianapolis 500 in 2000. This effort was put forth by Treadway Racing with backing from Roger Penske's United Auto group. Leffler qualified in the 17th position, which was also where he finished.

=NASCAR career=

During the 2000 season, Leffler drove full-time for the No. 18 MBNA sponsored Joe Gibbs Racing team in the Busch Series. He finished twentieth in the final standings, earned three pole positions during the year, and finished second at Phoenix. He also made two IRL starts, among them a start for Treadway in the Indianapolis 500 where he started and finished seventeenth. After that season he moved up to the Winston Cup Series to become the driver of the #01 Cingular Wireless Dodge for Chip Ganassi Racing as the permanent replacement for Kenny Irwin Jr., who was killed in a practice crash while driving for the same team at New Hampshire in 2000. Leffler's car retained sponsorship from BellSouth through its Cingular Wireless property, and with Ganassi's purchase of a stake in Felix Sabates' former team came a switch in manufacturer as Leffler became one of several drivers to drive Dodge Intrepids in the brand's return to NASCAR. It was a controversial decision, as Leffler performed poorly the season prior in excellent Joe Gibbs equipment in the Busch series. During his inaugural Cup season, he had only one top 10 finish and four failures to qualify. He was, however, the inaugural pole setter at Kansas Speedway. After his 37th-place finish in the 2001 championship, Ganassi replaced him with Jimmy Spencer for the 2002 season and remade Leffler's former car into the #41 Target Dodge.

Leffler joined Ultra Motorsports in 2002 to drive the #2 Carquest/Team ASE Dodge Ram in place of the departed Scott Riggs and had great success early on with the team. In his first year, he tied a single season Craftsman Truck Series record by scoring eight pole positions, and qualified no worse than eighth at any race during the season. Despite not winning a race, he had six second-place finishes and a fourth-place finish in the championship. He also won the Night Before the 500 midget race and got to drive Ultra's #7 car in the final two races of the Cup Series season after the team fired Casey Atwood. Leffler finally broke through in 2003 when he scored his first career victory at Dover.

File:Compton Leffler.jpg

Despite the success, Leffler ended up losing his ride at Ultra in a controversial fashion. Haas CNC Racing, which was fielding its first full-time Cup Series team, had fired its driver Jack Sprague after the Tropicana 400. Team owner Gene Haas named John Andretti as his replacement, but he was unavailable for the Brickyard 400 due to a prior commitment with Dale Earnhardt, Inc. Haas approached Leffler to drive the #0 NetZero Pontiac Grand Prix in the race and he agreed to do so. Ultra, which had warned Leffler that such a move would be in violation of his contract, responded by firing him.

Leffler made ten starts in the #0, becoming the permanent driver after the Sirius Satellite Radio at the Glen. The team then signed Ward Burton away from Bill Davis Racing to take over the car, and he joined the team before the season was over to get a head start. Leffler was moved to the #00 Haas Automation car in the Busch Series for the remainder of 2003, with the idea that he would remain there for 2004. At Nashville Superspeedway in 2004, Leffler scored his first career Busch Series victory. He also was involved in a controversial finish at the Winn-Dixie 250; he was penalized by NASCAR for "over-aggressive driving" on the final lap, that saw Michael Waltrip get spun, and then Dale Earnhardt Jr. get wrecked, both by Leffler. He was running third in the points when the team released him from his contract. He ended up finishing twelfth in the championship despite missing the last seven races.

Shortly after his dismissal, Leffler signed a deal to re-join Joe Gibbs Racing for 2005, taking over a newly created Cup team sponsored by FedEx. The No. 11 Chevrolet was regularly outside of the top 35 in points, meaning that it was not guaranteed a starting spot for all races; Leffler was unable to qualify for the Coca-Cola 600 because of it. He was replaced by Terry Labonte for the two road-course races and, eventually, was fired from JGR after nineteen starts in which he failed to record a top ten finish. He was replaced by a mix of Labonte and JGR developmental drivers J. J. Yeley and Denny Hamlin, the latter of whom took over the car full-time the following season.

While racing with Gibbs, Leffler briefly raced with Braun Racing in the Busch Series, a team that had lost their regular driver, Shane Hmiel, to a drug suspension. After leaving Gibbs, Leffler joined Braun Racing on a full-time basis for the remainder of the season. Leffler had scored four top ten finishes with Braun in nine starts for the team.

For the 2006 season, Leffler was signed to return to Braun Racing to drive the No. 32 Chevrolet. The team carried sponsorships from Lucas Oil, Fraternal Order of Eagles, and ABF U-Pack Moving. The No. 32 team became the No. 38 team with sponsorship from Great Clips after it merged with Akins Motorsports. Jason also attempted to qualify for the second to last race of the chase at Phoenix in the No. 71 for Braun Racing but failed to qualify. He also owned the 2006 USAC Silver Crown championship team.

File:JasonLefflerToyotaMilwaukeeMile2009.jpg

During the 2007 season, Leffler won the pole for the Winn-Dixie 250 at Daytona International Speedway. He finished ninth. Leffler would make NASCAR history on July 28, 2007, as he passed Greg Biffle with two laps remaining to win the Busch Series Kroger 200 at O'Reilly Raceway Park. The win marked the first race victory for a Toyota Camry in Busch Series competition, and the first win for a foreign manufacturer in a top-tier NASCAR series since Al Keller won in a Jaguar in 1954. The win also marked Leffler's second career Busch Series win and first win since the 2004 season. Leffler would finish the 2007 season 3rd in the points standings, the highest of the Busch regulars. Leffler returned to Sprint Cup in 2008 for a few races in the No. 70 Haas CNC Chevy while driving full-time for Braun Racing's No. 38 Toyota Camry in the Nationwide Series.

In 2009 at the July Daytona race weekend, it was announced that the No. 38 Toyota car would be shared with Kasey Kahne for the 2010 NASCAR Nationwide Series season. Leffler still drove full-time, as he would pilot the No. 10 Toyota in races Kahne was in the No. 38. On September 25, 2010, Braun Racing's Nationwide operations were acquired by Turner Motorsports. Leffler continued driving full-time in the Great Clips No. 38 for TMS in 2010 and 2011 with select races in the No. 10 and 30. In late 2011 he was informed that he was free to pursue other opportunities for the 2012 season. During the second-to-last race of the 2011 NASCAR Nationwide Series season at Phoenix International Raceway, Leffler was racing with Elliott Sadler, who was 17 points back of first place in the standings coming into the race, and Aric Almirola for 10th when Leffler bumped into the rear bumper of Sadler in turn 3 turning Sadler around and collecting himself, Almirola, Jeremy Clements, and Morgan Shepherd. The wreck ended up costing Sadler the championship as Sadler lost the championship by 45 points to Ricky Stenhouse Jr. Leffler in his interview took full responsibility for what happened between him and Sadler saying that it was his own fault.{{cite web|url=https://www.nnsracing.com/2011/11/12/2557458/elliott-sadlers-title-hopes-dashed-with-late-race-crash|title=Elliott Sadler's title hopes dashed with late-race crash|access-date=November 12, 2011|archive-date=November 14, 2011|archive-url=https://web.archive.org/web/20111114231536/http://www.nnsracing.com/2011/11/12/2557458/elliott-sadlers-title-hopes-dashed-with-late-race-crash|url-status=dead}}

On January 9, 2012, Kyle Busch Motorsports announced that Leffler would drive the No. 18 truck for fourteen races with sponsorship from Dollar General.{{cite web|url=http://msn.foxsports.com/nascar/story/Jason-Leffler-to-join-Kyle-Busch-Motorsports-for-2012-NASCAR-Truck-Series-season |title=Leffler joins Kyle Busch's truck team |date=January 9, 2012 |work=Fox Sports |access-date=January 10, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120113063444/http://msn.foxsports.com/nascar/story/Jason-Leffler-to-join-Kyle-Busch-Motorsports-for-2012-NASCAR-Truck-Series-season |archive-date=January 13, 2012 }} However, strings of bad luck and poor finishes plagued the team, and Leffler was released on August 14.{{cite web|url=http://www.cbssports.com/nascar/blog/eye-on-nascar/19795830/jason-leffler-out-at-kyle-busch-motorsports |title=Jason Leffler out at Kyle Busch Motorsports |last=Pistone |first=Pete |date=August 14, 2012 |work=Eye on NASCAR |publisher=CBS Sports |access-date=August 15, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20121115012728/http://www.cbssports.com/nascar/blog/eye-on-nascar/19795830/jason-leffler-out-at-kyle-busch-motorsports |archive-date=November 15, 2012 }}

Leffler also returned to the Cup Series in 2012, driving for Robinson-Blakeney Racing at Watkins Glen International,{{cite web|url=http://www.fltimes.com/sports/article_f30ceeb0-e42f-11e1-adcb-001a4bcf887a.html|title=Watkins Glen Notebook: Montoya will start first in Finger Lakes 355 at The Glen|last=Marquart|first=Chris|date=August 11, 2012|work=Finger Lakes Times|access-date=August 15, 2012|location=Geneva, NY}} and for Humphrey Smith Racing at Michigan International Speedway.{{cite web|url=http://www.cbssports.com/nascar/blog/eye-on-nascar/19794070/michigan-entry-list-features-45-drivers |title=Michigan entry list features 45 drivers |last=Pistone |first=Pete |date=August 14, 2012 |work=Eye on NASCAR |publisher=CBS Sports |access-date=August 15, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20121115012723/http://www.cbssports.com/nascar/blog/eye-on-nascar/19794070/michigan-entry-list-features-45-drivers |archive-date=November 15, 2012 }}

Leffler made a single Cup Series start in 2013, driving Humphrey Smith Racing's No. 19 Toyota Camry at Pocono Raceway in early June, three days before his death; he started and parked, finishing 43rd in the event.{{cite web|url=http://www.racing-reference.info/drivdet/lefflja01/2013/W|title=Jason Leffler – 2013 NASCAR Sprint Cup Results|work=Racing-Reference|publisher=USA Today Sports Media Group|access-date=June 13, 2013}}

Death

On June 12, 2013, at 8:30 PM, Leffler was involved in a crash during a 410 sprint car heat race at the {{convert|5/8|mi|km|adj=on}} Bridgeport Speedway in Logan Township, New Jersey.{{cite web|url=https://sports.yahoo.com/news/nj-authorities-investigate-fatal-dirt-150104690--nascar.html |title=Leffler remembered as friend, teammate, father |date=June 13, 2013 |website=Yahoo! Sports |publisher=Associated Press |access-date=June 13, 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130616210138/http://sports.yahoo.com/news/nj-authorities-investigate-fatal-dirt-150104690--nascar.html |archive-date=June 16, 2013 }} Running second with a few laps left, his car suffered a front suspension failure, causing it to crash into a wall and flip several times.{{cite web|url=https://www.usatoday.com/story/sports/nascar/2013/06/21/jason-leffler-driver-death-nascar/2447211/|title=Police say mechanical failure caused Leffler's crash|last=Gluck|first=Jeff|date=June 21, 2013|work=USA Today|access-date=June 25, 2013}}

Leffler instantly lost consciousness in the accident. When it was found that Leffler was not breathing, the rest of the race was cancelled and victory lane ceremonies did not take place. He was transported by ambulance to Crozer-Chester Medical Center in Chester, Pennsylvania,

  • {{cite web|url=http://www.wcnc.com/sports/nascar/Leffler-dies-after-accident-in-dirt-car-event-211316461.html |archive-url=https://archive.today/20130615081647/http://www.wcnc.com/sports/nascar/Leffler-dies-after-accident-in-dirt-car-event-211316461.html |url-status=dead |archive-date=June 15, 2013 |title=NASCAR driver Jason Leffler dies after accident in dirt car event |last=Utter |first=Jim |date=June 13, 2013 |work=WCNC-TV |access-date=June 13, 2013 |location=Charlotte, North Carolina }}
  • {{cite web|url=https://www.usatoday.com/story/sports/nascar/2013/06/12/jason-leffler-crash-dead-bridgeport-dirt-track/2417795/ |title=NASCAR's Jason Leffler dead after dirt track crash |last=Ryan |first=Nate |author2=Jeff Gluck |date=June 13, 2013 |work=USA Today |access-date=June 14, 2013 |location=Tysons Corner, Virginia }}
  • {{cite news|url=https://www.washingtonpost.com/blogs/early-lead/wp/2013/06/13/nascar-driver-jason-leffler-killed-in-race/ |title=NASCAR driver Jason Leffler killed in race |last=Boren |first=Cindy |date=June 13, 2013 |newspaper=The Washington Post |access-date=June 14, 2013 |location=Washington, DC }} where he was pronounced dead at 9:00 PM EDT, 30 minutes after the accident.
  • {{cite news|title=Leffler Dies After Accident in Dirt Car Event|url=https://abcnews.go.com/Sports/wireStory/leffler-dies-accident-dirt-car-event-19387636#.UbkzH_n0CWY|access-date=June 13, 2013|newspaper=ABC News|date=June 13, 2013}}
  • {{cite news|title=NASCAR driver Jason Leffler dies from injuries sustained in crash|url=http://www.upi.com/Sports_News/2013/06/12/NASCAR-driver-Jason-Leffler-dies-from-injuries-sustained-in-crash/UPI-23541371093159/|access-date=June 13, 2013|date=June 12, 2013|work=UPI}} An autopsy report stated that the cause of death was a severe blunt force neck and spine injury.{{cite web|url=https://www.usatoday.com/story/sports/nascar/2013/06/13/jason-leffler-cause-of-death-nascar/2421945/|title=Autopsy reveals Jason Leffler's cause of death|last=Gluck|first=Jeff|date=June 14, 2013|work=USA Today|access-date=June 14, 2013|location=Tysons Corner, Virginia}}

After his death, many drivers and racing associations such as NASCAR and IndyCar made statements on the death and gave their condolences. NASCAR drivers competing in the 2013 Quicken Loans 400 had special stickers placed on their cars in honor of Leffler. Denny Hamlin, who replaced Leffler in the No. 11 FedEx Chevrolet in late 2005 had his car repainted to resemble Leffler's livery.{{cite news|url=https://www.espn.com/racing/nascar/cup/story/_/id/9391928/denny-hamlin-honors-jason-leffler-repainted-ride |title=No. 11 car a tribute to Jason Leffler |work=ESPN |agency=Associated Press |date=June 2013}}

Personal life

Leffler was the son of Charles and Patricia Leffler. Leffler had a son with Alison East, Charlie Dean, who was five years old at the time of his father's death. He was a native of Long Beach, California.{{Cite web |last=Peltz |first=Jim |date=June 14, 2013 |title=Death of racer Jason Leffler shakes his mentor Parnelli Jones |url=https://www.latimes.com/sports/la-xpm-2013-jun-14-la-sp-leffler-parnelli-jones-20130614-story.html |access-date=January 30, 2025 |website=Los Angeles Times |language=en-US}}{{Cite web |last=Chang |first=David |publisher=Associated Press |date=June 12, 2013 |title=NASCAR Driver Killed in Crash at Local Speedway |url=https://www.nbcphiladelphia.com/news/national-international/nascar-driver-in-critical-after-crash-at-local-speedway/1984074/ |access-date=January 30, 2025 |website=NBC10 Philadelphia |language=en-US}} He shared his life with live-in girlfriend Julianna Patterson; they resided in North Carolina and were engaged at the time of his death.{{citation needed|date=April 2020}}

Career awards

Leffler was inducted into the National Midget Auto Racing Hall of Fame in 2003. He had 19 USAC national championship midget car wins at that time. He was inducted in the USAC Hall of Fame in 2018.{{Cite episode |title=Wayne County Speedway |series=USAC National Midgets |network=FloRacing |date=October 10, 2020 |time=19:08 }} He also had six USAC Silver Crown wins.

Motorsports career results

=American open-wheel racing=

(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

==IndyCar Series==

class="wikitable" style="text-align:center; font-size:85%"
colspan=45| IndyCar Series results
Year

! Team

! Chassis

! No.

! Engine

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! 10

! 11

! Rank

! Points

! Ref

1999

! rowspan=3 nowrap| Treadway Racing

! rowspan=3 nowrap| G-Force

! 5

! rowspan=3| Oldsmobile

|style="background:#EFCFFF;"|WDW
28

|PHX

|CLT

|INDY

|TXS

|PPIR

|ATL

|DOV

|PP2

|LVS

|TX2

!style="background:#CFCFFF;"| 48th

!style="background:#CFCFFF;"| 2

!{{cite web|url=https://www.racing-reference.info/driver-season-stats/lefflja01/1999/O/|title=Jason Leffler – 1999 Pep Boys Indy Racing League Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=August 6, 2023}}

rowspan=2| 2000

! 55

|WDW

|PHX

|style="background:#EFCFFF;"|LVS
15

|colspan=8|

!rowspan=2 style="background:#CFCFFF;"| 30th

!rowspan=2 style="background:#CFCFFF;"| 28

!rowspan=2| {{cite web|url=https://www.racing-reference.info/driver-season-stats/lefflja01/2000/O/|title=Jason Leffler – 2000 Indy Racing Northern Lights Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=August 6, 2023}}

50

|colspan=3|

|style="background:#CFCFFF;"|INDY
17

|TXS

|PPIR

|ATL

|KTY

|TX2

|colspan=2|

==Indianapolis 500==

class="wikitable" style="text-align:center; font-size:90%"
Year

! Chassis

! Engine

! Start

! Finish

! Team

2000

| G-Force

| Oldsmobile

| 17

| style="background:#CFCFFF;"| 17

| nowrap| Treadway Racing

=NASCAR=

(key) (Bold – Pole position awarded by qualifying time. Italics – Pole position earned by points standings or practice time. * – Most laps led.)

==Sprint Cup Series==

class="wikitable" style="text-align:center; font-size:75%"
colspan=45| NASCAR Sprint Cup Series results
Year

! Team

! No.

! Make

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! 10

! 11

! 12

! 13

! 14

! 15

! 16

! 17

! 18

! 19

! 20

! 21

! 22

! 23

! 24

! 25

! 26

! 27

! 28

! 29

! 30

! 31

! 32

! 33

! 34

! 35

! 36

! {{Tooltip|NSCC|NASCAR Sprint Cup classification}}

! Pts

! Ref

rowspan=2| 2001

! rowspan=2| Chip Ganassi Racing

! 01

! rowspan=2| Dodge

| style="background:#EFCFFF;"| DAY
34

| style="background:#CFCFFF;"| CAR
33

| style="background:#CFCFFF;"| LVS
28

| style="background:#EFCFFF;"| ATL
32

| style="background:#EFCFFF;"| DAR
39

| style="background:#FFCFCF;"| BRI
DNQ

| style="background:#DFFFDF;"| TEX
17

| style="background:#FFCFCF;"| MAR
DNQ

| style="background:#DFFFDF;"| TAL
20

| style="background:#DFFFDF;"| CAL
18

| style="background:#CFCFFF;"| RCH
26

| style="background:#CFCFFF;"| CLT
30

| style="background:#DFFFDF;"| DOV
13

| style="background:#DFFFDF;"| MCH
19

| style="background:#EFCFFF;"| POC
41

|

| style="background:#CFCFFF;"| DAY
24

| style="background:#CFCFFF;"| CHI
24

| style="background:#CFCFFF;"| NHA
27

| style="background:#CFCFFF;"| POC
21

| style="background:#CFCFFF;"| IND
26

| GLN

| style="background:#CFCFFF;"| MCH
24

| style="background:#CFCFFF;"| BRI
30

| style="background:#EFCFFF;"| DAR
43

| style="background:#CFCFFF;"| RCH
28

| style="background:#FFCFCF;"| DOV
DNQ

| style="background:#EFCFFF;"| KAN
28

| style="background:#EFCFFF;"| CLT
43

| style="background:#CFCFFF;"| MAR
37

| style="background:#DFFFDF;"| TAL
15

| style="background:#EFCFFF;"| PHO
41

| style="background:#CFCFFF;"| CAR
30

| style="background:#FFDF9F;"| HOM
10

| style="background:#FFCFCF;"| ATL
DNQ

| style="background:#CFCFFF;"| NHA
30

! rowspan=2| 37th

! rowspan=2| 2413

! rowspan=2| {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2001/W|title=Jason Leffler – 2001 NASCAR Winton Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

04

| colspan=15|

| style="background:#FFCFCF;"| SON
DNQ

| colspan=20|

2002

! Ultra Motorsports

! 7

! Dodge

| DAY

| CAR

| LVS

| ATL

| DAR

| BRI

| TEX

| MAR

| TAL

| CAL

| RCH

| CLT

| DOV

| POC

| MCH

| SON

| DAY

| CHI

| NHA

| POC

| IND

| GLN

| MCH

| BRI

| DAR

| RCH

| NHA

| DOV

| KAN

| TAL

| CLT

| MAR

| ATL

| CAR

| style="background:#CFCFFF;"| PHO
31

| style="background:#CFCFFF;"| HOM
35

! 63rd

! 128

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2002/W|title=Jason Leffler – 2002 NASCAR Winton Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2003

! rowspan=2| Haas CNC Racing

! 0

! rowspan=2| Chevy

| DAY

| CAR

| LVS

| ATL

| DAR

| BRI

| TEX

| TAL

| MAR

| CAL

| RCH

| CLT

| DOV

| POC

| MCH

| SON

| DAY

| CHI

| NHA

| POC

| style="background:#CFCFFF;"| IND
33

| GLN

| style="background:#CFCFFF;"| MCH
35

| style="background:#CFCFFF;"| BRI
26

| style="background:#CFCFFF;"| DAR
26

| style="background:#CFCFFF;"| RCH
28

| style="background:#CFCFFF;"| NHA
27

| style="background:#CFCFFF;"| DOV
25

| style="background:#FFCFCF;"| TAL
DNQ

| style="background:#CFCFFF;"| KAN
30

| style="background:#CFCFFF;"| CLT
35

| style="background:#CFCFFF;"| MAR
27

| ATL

| PHO

| CAR

| HOM

! 47th

! 764

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2003/W|title=Jason Leffler – 2003 NASCAR Winton Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2004

! 60

| DAY

| CAR

| LVS

| ATL

| DAR

| BRI

| TEX

| MAR

| TAL

| CAL

| RCH

| CLT

| DOV

| POC

| MCH

| SON

| DAY

| CHI

| NHA

| POC

| style="background:#EFCFFF;"| IND
43

| GLN

| MCH

| BRI

| CAL

| RCH

| NHA

| DOV

| TAL

| KAN

| CLT

| MAR

| ATL

| PHO

| DAR

| HOM

! 88th

! 34

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2004/W|title=Jason Leffler – 2004 NASCAR Nextel Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2005

! Joe Gibbs Racing

! 11

! Chevy

| style="background:#EFCFFF;"| DAY
36

| style="background:#EFCFFF;"| CAL
37

| style="background:#CFCFFF;"| LVS
22

| style="background:#CFCFFF;"| ATL
25

| style="background:#CFCFFF;"| BRI
38

| style="background:#DFFFDF;"| MAR
12

| style="background:#CFCFFF;"| TEX
36

| style="background:#CFCFFF;"| PHO
29

| style="background:#CFCFFF;"| TAL
26

| style="background:#CFCFFF;"| DAR
38

| style="background:#CFCFFF;"| RCH
25

| style="background:#FFCFCF;"| CLT
DNQ

| style="background:#DFFFDF;"| DOV
20

| style="background:#EFCFFF;"| POC
40

| style="background:#DFFFDF;"| MCH
20

| SON

| style="background:#DFFFDF;"| DAY
18

| style="background:#DFFFDF;"| CHI
20

| style="background:#CFCFFF;"| NHA
24

| style="background:#CFCFFF;"| POC
24

| style="background:#CFCFFF;"| IND
33

| GLN

| MCH

| BRI

| CAL

| RCH

| NHA

| DOV

| TAL

| KAN

| CLT

| MAR

| ATL

| TEX

| PHO

| HOM

! 38th

! 1538

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2005/W|title=Jason Leffler – 2005 NASCAR Nextel Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2006

! Braun Racing

! 71

! Chevy

| DAY

| CAL

| LVS

| ATL

| BRI

| MAR

| TEX

| PHO

| TAL

| RCH

| DAR

| CLT

| DOV

| POC

| MCH

| SON

| DAY

| CHI

| NHA

| POC

| IND

| GLN

| MCH

| BRI

| CAL

| RCH

| NHA

| DOV

| KAN

| TAL

| CLT

| MAR

| ATL

| TEX

| style="background:#FFCFCF;"| PHO
DNQ

| HOM

! NA

! -

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2006/W|title=Jason Leffler – 2006 NASCAR Nextel Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2008

! Haas CNC Racing

! 70

! Chevy

| DAY

| CAL

| LVS

| ATL

| BRI

| MAR

| TEX

| PHO

| TAL

| RCH

| DAR

| CLT

| style="background:#FFCFCF;"| DOV
DNQ

| style="background:#EFCFFF;"| POC
40

| style="background:#FFCFCF;"| MCH
DNQ

| SON

| NHA

| DAY

| style="background:#CFCFFF;"| CHI
27

| style="background:#CFCFFF;"| IND
32

| POC

| GLN

| MCH

| BRI

| CAL

| RCH

| NHA

| DOV

| KAN

| TAL

| CLT

| MAR

| ATL

| TEX

| PHO

| HOM

! 59th

! 192

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2008/W|title=Jason Leffler – 2008 NASCAR Sprint Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

rowspan=2| 2010

! Braun Racing

! 32

! Toyota

| DAY

| CAL

| LVS

| ATL

| BRI

| MAR

| PHO

| TEX

| TAL

| RCH

| DAR

| DOV

| CLT

| POC

| MCH

| SON

| NHA

| DAY

| CHI

| IND

| POC

| GLN

| MCH

| BRI

| style="background:#FFCFCF;"| ATL
DNQ

| style="background:#EFCFFF;"| RCH
43

| NHA

| DOV

| colspan=8|

! rowspan=2| 70th

! rowspan=2| 68

! rowspan=2| {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2010/W|title=Jason Leffler – 2010 NASCAR Sprint Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

Prism Motorsports

! 66

! Toyota

| colspan=28|

| style="background:#FFCFCF;"| KAN
DNQ

| style="background:#EFCFFF;"| CAL
43

| style="background:#FFCFCF;"| CLT
DNQ

| MAR

| TAL

| TEX

| style="background:#FFCFCF;"| PHO
DNQ

| HOM

rowspan=4| 2012

! nowrap| Robinson-Blakeney Racing

! 49

! Toyota

| DAY

| PHO

| LVS

| BRI

| CAL

| MAR

| TEX

| KAN

| RCH

| TAL

| DAR

| CLT

| DOV

| POC

| MCH

| SON

| KEN

| DAY

| NHA

| IND

| POC

| style="background:#EFCFFF;"| GLN
35

|

| style="background:#CFCFFF;"| BRI
31

| style="background:#EFCFFF;"| ATL
38

| RCH

| style="background:#FFCFCF;"| CHI
DNQ

| style="background:#FFCFCF;"| NHA
DNQ

| style="background:#FFCFCF;"| DOV
DNQ

| TAL

| CLT

| KAN

| MAR

| TEX

| colspan=2|

! rowspan=4| 71st

! rowspan=4| 01

! rowspan=4| {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2012/W|title=Jason Leffler – 2012 NASCAR Sprint Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

rowspan=4| Humphrey Smith Racing

! 19

! Ford

| colspan=22|

| style="background:#EFCFFF;"| MCH
43

| colspan=13|

rowspan=2| 91

! Chevy

| colspan=34|

| style="background:#EFCFFF;"| PHO
43

|

rowspan=2| Toyota

| colspan=35|

| style="background:#FFCFCF;"| HOM
DNQ

2013

! 19

| DAY

| PHO

| LVS

| BRI

| CAL

| MAR

| TEX

| KAN

| RCH

| TAL

| DAR

| CLT

| DOV

| style="background:#EFCFFF;"| POC
43

| MCH

| SON

| KEN

| DAY

| NHA

| IND

| POC

| GLN

| MCH

| BRI

| ATL

| RCH

| CHI

| NHA

| DOV

| KAN

| CLT

| TAL

| MAR

| TEX

| PHO

| HOM

! 52nd

! 1

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2013/W|title=Jason Leffler – 2013 NASCAR Sprint Cup Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

===Daytona 500===

class="wikitable" style="font-size: 90%;"
Year

! Team

! Manufacturer

! Start

! Finish

2001

| Chip Ganassi Racing

| Dodge

|align=center| 15

|align=center style="background:#EFCFFF;"| 34

2005

| Joe Gibbs Racing

| Chevrolet

|align=center| 40

|align=center style="background:#EFCFFF;"| 36

==Nationwide Series==

class="wikitable" style="text-align:center; font-size:75%"

!colspan=45| NASCAR Nationwide Series results

Year

! Team

! No.

! Make

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! 10

! 11

! 12

! 13

! 14

! 15

! 16

! 17

! 18

! 19

! 20

! 21

! 22

! 23

! 24

! 25

! 26

! 27

! 28

! 29

! 30

! 31

! 32

! 33

! 34

! 35

! {{Tooltip|NNSC|NASCAR Nationwide Series classification}}

! Pts

! Ref

1999

! rowspan=2| Joe Gibbs Racing

! rowspan=2| 18

! rowspan=2| Pontiac

| DAY

| CAR

| LVS

| ATL

| DAR

| TEX

| NSV

| BRI

| TAL

| CAL

| NHA

| RCH

| NZH

| CLT

| DOV

| SBO

| GLN

| MLW

| MYB

| PPR

| GTY

| style="background:#EFCFFF;"| IRP
41

| MCH

| BRI

| DAR

| style="background:#CFCFFF;"| RCH
22

| style="background:#FFCFCF;"| DOV
DNQ

| CLT

| style="background:#CFCFFF;"| CAR
24

| style="background:#DFFFDF;"| MEM
20

| PHO

| HOM

| colspan=3|

! 74th

! 331

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/1999/B|title=Jason Leffler – 1999 NASCAR Busch Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2000

| style="background:#DFFFDF;"| DAY
20

| style="background:#DFFFDF;"| CAR
19

| style="background:#CFCFFF;"| LVS
28

| style="background:#FFCFCF;"| ATL
DNQ

| style="background:#EFCFFF;"| DAR
37

| style="background:#CFCFFF;"| BRI
25

| style="background:#CFCFFF;"| TEX
22

| style="background:#CFCFFF;"| NSV
21

| style="background:#CFCFFF;"| TAL
28

| style="background:#EFCFFF;"| CAL
39

| style="background:#CFCFFF;"| RCH
35

| style="background:#CFCFFF;"| NHA
24

| style="background:#CFCFFF;"| CLT
21

| style="background:#CFCFFF;"| DOV
28

| style="background:#CFCFFF;"| SBO
32

| style="background:#FFDF9F;"| MYB
7

| style="background:#CFCFFF;"| GLN
28

| style="background:#DFFFDF;"| MLW
15

| style="background:#DFFFDF;"| NZH
15

| style="background:#CFCFFF;"| PPR
24

| style="background:#DFFFDF;"| GTY
15

| style="background:#DFDFDF;"| IRP
4

| style="background:#CFCFFF;"| MCH
41

| style="background:#EFCFFF;"| BRI
36

| style="background:#CFCFFF;"| DAR
28

| style="background:#DFFFDF;"| RCH
15

| style="background:#FFDF9F;"| DOV
10

| style="background:#EFCFFF;"| CLT
36

| style="background:#CFCFFF;"| CAR
30

| style="background:#DFFFDF;"| MEM
16

| style="background:#DFDFDF;"| PHO
2

| style="background:#DFFFDF;"| HOM
12

| colspan=3|

! 20th

! 2956

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2000/B|title=Jason Leffler – 2000 NASCAR Busch Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2003

! rowspan=2| Haas CNC Racing

! rowspan=2| 00

! rowspan=2| Chevy

| DAY

| CAR

| LVS

| DAR

| BRI

| TEX

| TAL

| NSH

| CAL

| RCH

| GTY

| NZH

| CLT

| DOV

| NSH

| KEN

| MLW

| DAY

| CHI

| NHA

| PPR

| IRP

| MCH

| BRI

| DAR

| RCH

| DOV

| style="background:#DFFFDF;"| KAN
16

| style="background:#DFFFDF;"| CLT
11

| MEM

| style="background:#CFCFFF;"| ATL
22

| style="background:#DFFFDF;"| PHO
11

| style="background:#CFCFFF;"| CAR
22

| style="background:#DFDFDF;"| HOM
4

|

! 52nd

! 739

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2003/B|title=Jason Leffler – 2003 NASCAR Busch Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2004

| style="background:#FFDF9F;"| DAY
8

| style="background:#CFCFFF;"| CAR
32

| style="background:#CFCFFF;"| LVS
22

| style="background:#DFFFDF;"| DAR
14

| style="background:#EFCFFF;"| BRI
32

| style="background:#FFDF9F;"| TEX
6

| style="background:#FFDF9F;"| NSH
9

| style="background:#DFDFDF;"| TAL
5

| style="background:#EFCFFF;"| CAL
34

| style="background:#FFDF9F;"| GTY
6

| style="background:#DFFFDF;"| RCH
11

| style="background:#FFDF9F;"| NZH
7

| style="background:#DFDFDF;"| CLT
4

| style="background:#DFFFDF;"| DOV
14

| style="background:#FFFFBF;"| NSH
1*

| style="background:#FFDF9F;"| KEN
7

| style="background:#DFFFDF;"| MLW
15

| style="background:#DFFFDF;"| DAY
13

| style="background:#FFDF9F;"| CHI
7

| style="background:#DFDFDF;"| NHA
3

| style="background:#DFDFDF;"| PPR
3

| style="background:#DFDFDF;"| IRP
3

| style="background:#FFDF9F;"| MCH
7

| style="background:#DFFFDF;"| BRI
17

| style="background:#FFDF9F;"| CAL
10

| style="background:#DFDFDF;"| RCH
4

| style="background:#DFDFDF;"| DOV
4

| KAN

| CLT

| MEM

| ATL

| PHO

| DAR

| HOM

|

! 12th

! 3661

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2004/B|title=Jason Leffler – 2004 NASCAR Busch Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2005

! rowspan=8| Braun Racing

! rowspan=2| 32

! rowspan=3| Chevy

| DAY

| CAL

| MXC

| LVS

| ATL

| NSH

| BRI

| TEX

| PHO

| TAL

| DAR

| RCH

| CLT

| DOV

| NSH

| KEN

| MLW

| style="background:#FFDF9F;"| DAY
9

| style="background:#CFCFFF;"| CHI
23

| style="background:#CFCFFF;"| NHA
29

| PPR

| style="background:#DFFFDF;"| GTY
18

| IRP

| GLN

| style="background:#DFFFDF;"| MCH
14

| style="background:#DFFFDF;"| BRI
20

| style="background:#FFDF9F;"| CAL
7

| style="background:#DFDFDF;"| RCH
5

| style="background:#DFDFDF;"| DOV
3

| style="background:#DFFFDF;"| KAN
19

| style="background:#FFDF9F;"| CLT
6

| style="background:#CFCFFF;"| MEM
24

| style="background:#FFDF9F;"| TEX
8

| style="background:#FFDF9F;"| PHO
7

| style="background:#CFCFFF;"| HOM
27

! 30th

! 1829

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2005/B|title=Jason Leffler – 2005 NASCAR Busch Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

rowspan=2| 2006

| style="background:#FFDF9F;"| DAY
6

| style="background:#CFCFFF;"| CAL
22

| style="background:#DFFFDF;"| MXC
17

| style="background:#DFFFDF;"| LVS
11

| style="background:#FFDF9F;"| ATL
6

| style="background:#CFCFFF;"| BRI
32

| style="background:#DFFFDF;"| TEX
17

| style="background:#EFCFFF;"| NSH
35

| style="background:#CFCFFF;"| PHO
22*

| colspan=26|

! rowspan=2| 13th

! rowspan=2| 3554

! rowspan=2| {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2006/B|title=Jason Leffler – 2006 NASCAR Busch Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

rowspan=4| 38

| colspan=9|

| style="background:#DFFFDF;"| TAL
18

| style="background:#CFCFFF;"| RCH
24

| style="background:#FFDF9F;"| DAR
10

| style="background:#DFFFDF;"| CLT
18

| style="background:#EFCFFF;"| DOV
34

| style="background:#EFCFFF;"| NSH
43

| style="background:#EFCFFF;"| KEN
40

| style="background:#DFDFDF;"| MLW
4

| style="background:#DFFFDF;"| DAY
18

| style="background:#DFFFDF;"| CHI
19

| style="background:#DFFFDF;"| NHA
14

| style="background:#FFDF9F;"| MAR
8

| style="background:#CFCFFF;"| GTY
33

| style="background:#DFFFDF;"| IRP
19

| style="background:#CFCFFF;"| GLN
35

| style="background:#DFFFDF;"| MCH
13

| style="background:#DFDFDF;"| BRI
5

| style="background:#CFCFFF;"| CAL
24

| style="background:#DFFFDF;"| RCH
20

| style="background:#DFDFDF;"| DOV
5

| style="background:#EFCFFF;"| KAN
31

| style="background:#EFCFFF;"| CLT
28

| style="background:#EFCFFF;"| MEM
34

| style="background:#EFCFFF;"| TEX
43

| style="background:#DFFFDF;"| PHO
14

| style="background:#DFFFDF;"| HOM
19

2007

! rowspan=7| Toyota

| style="background:#CFCFFF;"| DAY
22

| style="background:#EFCFFF;"| CAL
38

| style="background:#FFDF9F;"| MXC
6

| style="background:#EFCFFF;"| LVS
37

| style="background:#EFCFFF;"| ATL
41

| style="background:#EFCFFF;"| BRI
34

| style="background:#DFDFDF;"| NSH
4

| style="background:#DFFFDF;"| TEX
13

| style="background:#DFFFDF;"| PHO
18

| style="background:#CFCFFF;"| TAL
35

| style="background:#CFCFFF;"| RCH
37

| style="background:#FFDF9F;"| DAR
6

| style="background:#CFCFFF;"| CLT
31

| style="background:#DFFFDF;"| DOV
11

| style="background:#DFDFDF;"| NSH
3

| style="background:#DFFFDF;"| KEN
14

| style="background:#DFDFDF;"| MLW
3

| style="background:#DFFFDF;"| NHA
12

| style="background:#FFDF9F;"| DAY
9

| style="background:#CFCFFF;"| CHI
33

| style="background:#DFDFDF;"| GTY
4

| style="background:#FFFFBF;"| IRP
1

| style="background:#CFCFFF;"| CGV
26

| style="background:#CFCFFF;"| GLN
27

| style="background:#DFFFDF;"| MCH
12

| style="background:#DFDFDF;"| BRI
2*

| style="background:#DFFFDF;"| CAL
14

| style="background:#DFFFDF;"| RCH
11

| style="background:#CFCFFF;"| DOV
30

| style="background:#CFCFFF;"| KAN
21

| style="background:#DFFFDF;"| CLT
19

| style="background:#DFDFDF;"| MEM
5

| style="background:#DFFFDF;"| TEX
12

| style="background:#FFDF9F;"| PHO
8

| style="background:#DFFFDF;"| HOM
14

! 3rd

! 3996

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2007/B|title=Jason Leffler – 2007 NASCAR Busch Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2008

| style="background:#DFFFDF;"| DAY
19

| style="background:#DFFFDF;"| CAL
11

| style="background:#EFCFFF;"| LVS
39

| style="background:#FFDF9F;"| ATL
8

| style="background:#FFDF9F;"| BRI
6

| style="background:#DFFFDF;"| NSH
13

| style="background:#FFDF9F;"| TEX
9

| style="background:#DFFFDF;"| PHO
14

| style="background:#CFCFFF;"| MXC
21

| style="background:#DFDFDF;"| TAL
4

| style="background:#DFFFDF;"| RCH
16

| style="background:#FFDF9F;"| DAR
9

| style="background:#EFCFFF;"| CLT
32

| style="background:#EFCFFF;"| DOV
27

| style="background:#CFCFFF;"| NSH
26

| style="background:#DFFFDF;"| KEN
16

| style="background:#FFDF9F;"| MLW
10

| style="background:#EFCFFF;"| NHA
32

| style="background:#CFCFFF;"| DAY
23

| style="background:#CFCFFF;"| CHI
27

| style="background:#DFDFDF;"| GTY
4

| style="background:#DFFFDF;"| IRP
16

| style="background:#FFDF9F;"| CGV
7

| style="background:#FFDF9F;"| GLN
8

| style="background:#FFDF9F;"| MCH
8

| style="background:#DFFFDF;"| BRI
15

| style="background:#CFCFFF;"| CAL
26

| style="background:#CFCFFF;"| RCH
30

| style="background:#FFDF9F;"| DOV
7

| style="background:#FFDF9F;"| KAN
8

| style="background:#DFFFDF;"| CLT
18

| style="background:#DFFFDF;"| MEM
12

| style="background:#DFFFDF;"| TEX
17

| style="background:#CFCFFF;"| PHO
25

| style="background:#DFDFDF;"| HOM
4

! 9th

! 4086

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2008/B|title=Jason Leffler – 2008 NASCAR Nationwide Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2009

| style="background:#CFCFFF;"| DAY
33

| style="background:#DFFFDF;"| CAL
11

| style="background:#DFDFDF;"| LVS
4

| style="background:#FFDF9F;"| BRI
10

| style="background:#DFFFDF;"| TEX
13

| style="background:#FFDF9F;"| NSH
6

| style="background:#DFDFDF;"| PHO
2

| style="background:#FFDF9F;"| TAL
6

| style="background:#FFDF9F;"| RCH
10

| style="background:#DFDFDF;"| DAR
2

| style="background:#FFDF9F;"| CLT
6

| style="background:#FFDF9F;"| DOV
8

| style="background:#DFDFDF;"| NSH
5

| style="background:#FFDF9F;"| KEN
6

| style="background:#FFDF9F;"| MLW
10

| style="background:#FFDF9F;"| NHA
10

| style="background:#DFFFDF;"| DAY
19

| style="background:#DFDFDF;"| CHI
4

| style="background:#DFFFDF;"| GTY
14

| style="background:#FFDF9F;"| IRP
8

| style="background:#DFDFDF;"| IOW
3

| style="background:#DFFFDF;"| GLN
15

| style="background:#DFFFDF;"| MCH
11

| style="background:#FFDF9F;"| BRI
6

| style="background:#EFCFFF;"| CGV
29

| style="background:#DFFFDF;"| ATL
20

| style="background:#CFCFFF;"| RCH
32

| style="background:#FFDF9F;"| DOV
6

| style="background:#DFFFDF;"| KAN
11

| style="background:#CFCFFF;"| CAL
30

| style="background:#EFCFFF;"| CLT
32

| style="background:#DFDFDF;"| MEM
3

| style="background:#DFDFDF;"| TEX
3

| style="background:#CFCFFF;"| PHO
27

| style="background:#DFFFDF;"| HOM
18

! 4th

! 4540

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2009/B|title=Jason Leffler – 2009 NASCAR Nationwide Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

rowspan=4| 2010

! 10

| style="background:#EFCFFF;"| DAY
33

| colspan=2|

| style="background:#FFDF9F;"| BRI
9

| colspan=5|

| style="background:#DFDFDF;"| DAR
5

| style="background:#DFDFDF;"| DOV
5

| style="background:#FFDF9F;"| CLT
7

| colspan=11|

| style="background:#DFDFDF;"| BRI
2

|

| style="background:#FFDF9F;"| ATL
7

| colspan=9|

! rowspan=4| 9th

! rowspan=4| 3941

! rowspan=4| {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2010/B|title=Jason Leffler – 2010 NASCAR Nationwide Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

rowspan=2| 38

|

| style="background:#DFFFDF;"| CAL
14

| style="background:#DFFFDF;"| LVS
12

|

| style="background:#EFCFFF;"| NSH
39

| style="background:#DFFFDF;"| PHO
19

| style="background:#DFFFDF;"| TEX
12

| style="background:#EFCFFF;"| TAL
41

| style="background:#DFFFDF;"| RCH
16

| colspan=3|

| style="background:#EFCFFF;"| NSH
34

| style="background:#EFCFFF;"| KEN
33

| style="background:#FFDF9F;"| ROA
8

| style="background:#DFFFDF;"| NHA
14

| style="background:#DFFFDF;"| DAY
14

| style="background:#DFDFDF;"| CHI
5

| style="background:#CFCFFF;"| GTY
23

| style="background:#CFCFFF;"| IRP
30

| style="background:#DFDFDF;"| IOW
3

| style="background:#EFCFFF;"| GLN
35

| style="background:#EFCFFF;"| MCH
34

|

| style="background:#EFCFFF;"| CGV
21

|

| style="background:#DFFFDF;"| RCH
14

| colspan=8|

rowspan=5 nowrap| Turner Motorsports

| colspan=27|

| style="background:#FFDF9F;"| DOV
8

| style="background:#FFDF9F;"| KAN
10

| style="background:#EFCFFF;"| CAL
37

| style="background:#DFFFDF;"| CLT
15

| style="background:#DFDFDF;"| GTY
4

| style="background:#FFDF9F;"| TEX
6

| style="background:#EFCFFF;"| PHO
33

|

10

| colspan=34|

| style="background:#FFDF9F;"| HOM
10

rowspan=2| 2011

! 30

! rowspan=3| Chevy

| style="background:#FFDF9F;"| DAY
6

| colspan=2|

| style="background:#FFDF9F;"| BRI
8

|

| style="background:#DFFFDF;"| TEX
15

| colspan=3|

| style="background:#FFDF9F;"| DAR
9

| colspan=14|

| style="background:#FFDF9F;"| BRI
7

| style="background:#FFDF9F;"| ATL
9

| colspan=2|

| style="background:#DFFFDF;"| DOV
19

|

| style="background:#DFFFDF;"| CLT
11

| colspan=4|

! rowspan=2| 6th

! rowspan=2| 1028

! rowspan=2| {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2011/B|title=Jason Leffler – 2011 NASCAR Nationwide Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

38

|

| style="background:#DFFFDF;"| PHO
11

| style="background:#FFDF9F;"| LVS
9

|

| style="background:#DFFFDF;"| CAL
11

|

| style="background:#DFFFDF;"| TAL
15

| style="background:#DFFFDF;"| NSH
15

| style="background:#FFDF9F;"| RCH
10

|

| style="background:#DFFFDF;"| DOV
11

| style="background:#CFCFFF;"| IOW
33

| style="background:#CFCFFF;"| CLT
21

| style="background:#DFDFDF;"| CHI
5

| style="background:#FFDF9F;"| MCH
10

| style="background:#EFCFFF;"| ROA
20

| style="background:#DFDFDF;"| DAY
2

| style="background:#DFFFDF;"| KEN
13

| style="background:#CFCFFF;"| NHA
30

| style="background:#DFFFDF;"| NSH
18

| style="background:#FFDF9F;"| IRP
6

| style="background:#DFFFDF;"| IOW
13

| style="background:#DFFFDF;"| GLN
18

| style="background:#FFDF9F;"| CGV
9

| colspan=2|

| style="background:#CFCFFF;"| RCH
29

| style="background:#DFFFDF;"| CHI
12

|

| style="background:#DFFFDF;"| KAN
13

|

| style="background:#DFFFDF;"| TEX
15

| style="background:#EFCFFF;"| PHO
26

| style="background:#DFFFDF;"| HOM
12

|

2012

! 30

| DAY

| PHO

| LVS

| BRI

| CAL

| TEX

| RCH

| TAL

| DAR

| IOW

| CLT

| DOV

| MCH

| ROA

| KEN

| DAY

| NHA

| CHI

| IND

| style="background:#FFDF9F;"| IOW
8

| GLN

| CGV

| BRI

| ATL

| RCH

| CHI

| KEN

| DOV

| CLT

| KAN

| TEX

| style="background:#DFFFDF;"| PHO
12

| HOM

| colspan=2|

! 120th

! 01

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2012/B|title=Jason Leffler – 2012 NASCAR Nationwide Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

==Camping World Truck Series==

class="wikitable" style="text-align:center; font-size:75%"

!colspan=45| NASCAR Camping World Truck Series results

Year

! Team

! No.

! Make

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! 10

! 11

! 12

! 13

! 14

! 15

! 16

! 17

! 18

! 19

! 20

! 21

! 22

! 23

! 24

! 25

! {{Tooltip|NCWTC|NASCAR Camping World Truck classification}}

! Pts

! Ref

2000

! Ultra Motorsports

! 5

! Ford

| DAY

| HOM

| PHO

| MMR

| MAR

| PIR

| GTY

| MEM

| PPR

| EVG

| TEX

| KEN

| GLN

| MLW

| NHA

| NZH

| MCH

| style="background:#EFCFFF;"| IRP
29

| NSV

| CIC

| RCH

| DOV

| TEX

| CAL

|

! 103rd

! 76

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2000/C|title=Jason Leffler – 2000 NASCAR Craftsman Truck Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2002

! rowspan=2| Ultra Motorsports

! rowspan=2| 2

! rowspan=2| Dodge

| style="background:#DFFFDF;"| DAY
11

| style="background:#EFCFFF;"| DAR
30

| style="background:#FFDF9F;"| MAR
6

| style="background:#DFDFDF;"| GTY
2

| style="background:#DFDFDF;"| PIR
2*

| style="background:#FFDF9F;"| DOV
9

| style="background:#EFCFFF;"| TEX
27

| style="background:#DFDFDF;"| MEM
4

| style="background:#DFDFDF;"| MLW
2

| style="background:#DFDFDF;"| KAN
4

| style="background:#DFDFDF;"| KEN
5

| style="background:#EFCFFF;"| NHA
27

| style="background:#DFDFDF;"| MCH
2

| style="background:#DFDFDF;"| IRP
2

| style="background:#EFCFFF;"| NSH
28

| style="background:#DFFFDF;"| RCH
12*

| style="background:#FFDF9F;"| TEX
8

| style="background:#FFDF9F;"| SBO
9

| style="background:#DFDFDF;"| LVS
5

| style="background:#DFDFDF;"| CAL
2

| style="background:#DFFFDF;"| PHO
16

| style="background:#DFDFDF;"| HOM
3

| colspan=3|

! 4th

! 3156

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2002/C|title=Jason Leffler – 2002 NASCAR Craftsman Truck Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2003

| style="background:#EFCFFF;"| DAY
30

| style="background:#FFDF9F;"| DAR
6

| style="background:#FFDF9F;"| MMR
7

| style="background:#DFFFDF;"| MAR
11

| style="background:#CFCFFF;"| CLT
21

| style="background:#FFFFBF;"| DOV
1

| style="background:#EFCFFF;"| TEX
27

| style="background:#FFDF9F;"| MEM
6

| style="background:#DFDFDF;"| MLW
2

| style="background:#FFDF9F;"| KAN
7

| style="background:#DFDFDF;"| KEN
5

| style="background:#DFDFDF;"| GTW
2

| style="background:#DFDFDF;"| MCH
4

| style="background:#EFCFFF;"| IRP
15

| style="background:#EFCFFF;"| NSH
24

| style="background:#FFDF9F;"| BRI
9

| RCH

| NHA

| CAL

| LVS

| SBO

| TEX

| MAR

| PHO

| HOM

! 16th

! 2209

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2003/C|title=Jason Leffler – 2003 NASCAR Craftsman Truck Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2004

! nowrap| Morgan-Dollar Motorsports

! 47

! Chevy

| DAY

| ATL

| MAR

| MFD

| CLT

| DOV

| TEX

| MEM

| MLW

| KAN

| KEN

| GTW

| MCH

| IRP

| NSH

| BRI

| RCH

| NHA

| LVS

| CAL

| TEX

| MAR

| PHO

| style="background:#CFCFFF;"| DAR
24

| HOM

! 95th

! 91

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2004/C|title=Jason Leffler – 2004 NASCAR Craftsman Truck Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2007

! Red Horse Racing

! 1

! Toyota

| DAY

| CAL

| ATL

| MAR

| KAN

| CLT

| MFD

| DOV

| TEX

| MCH

| MLW

| MEM

| KEN

| IRP

| NSH

| BRI

| GTW

| NHA

| LVS

| style="background:#DFDFDF;"| TAL
4

| style="background:#CFCFFF;"| MAR
23

| ATL

| style="background:#FFDF9F;"| TEX
9

| style="background:#DFDFDF;"| PHO
4

| style="background:#DFDFDF;"| HOM
5

! 41st

! 707

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2007/C|title=Jason Leffler – 2007 NASCAR Craftsman Truck Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2009

! Stringer Motorsports

! 90

! Toyota

| DAY

| CAL

| ATL

| MAR

| KAN

| CLT

| DOV

| TEX

| MCH

| style="background:#EFCFFF;"| MLW
29

| MEM

| KEN

| IRP

| NSH

| BRI

| CHI

| IOW

| GTW

| NHA

| LVS

| MAR

| TAL

| TEX

| PHO

| HOM

! 99th

! 76

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2009/C|title=Jason Leffler – 2009 NASCAR Camping World Truck Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

rowspan=2| 2012

! Kyle Busch Motorsports

! 18

! Toyota

| style="background:#EFCFFF;"| DAY
36

| style="background:#FFDF9F;"| MAR
8

| style="background:#EFCFFF;"| CAR
34

| style="background:#DFFFDF;"| KAN
18

| style="background:#DFDFDF;"| CLT
4

| DOV

| style="background:#FFDF9F;"| TEX
6

| style="background:#FFDF9F;"| KEN
8

| style="background:#FFDF9F;"| IOW
6

| style="background:#FFDF9F;"| CHI
8

| POC

| MCH

| BRI

| ATL

| IOW

| KEN

| LVS

| TAL

| MAR

| TEX

| PHO

| colspan=4|

! rowspan=2| 23rd

! rowspan=2| 294

! rowspan=2| {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2012/C|title=Jason Leffler – 2012 NASCAR Camping World Truck Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

Hillman Racing

! 27

! Chevy

| colspan=21|

| style="background:#DFFFDF;"| HOM
19

| colspan=3|

{{sup|1}} Ineligible for series points

=ARCA Bondo/Mar-Hyde Series=

(key) (Bold – Pole position awarded by qualifying time. Italics – Pole position earned by points standings or practice time. * – Most laps led.)

class="wikitable" style="text-align:center; font-size:75%"
colspan=45| ARCA Bondo/Mar-Hyde Series results
Year

! Team

! No.

! Make

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! 10

! 11

! 12

! 13

! 14

! 15

! 16

! 17

! 18

! 19

! 20

! 21

! {{Tooltip|ABMSC|ARCA Bondo/Mar-Hyde Series classification}}

! Pts

! Ref

1999

! rowspan=2 nowrap| Joe Gibbs Racing

! rowspan=2| 18

! rowspan=2| Pontiac

| DAY

| ATL

| SLM

| AND

| CLT

| MCH

| POC

| TOL

| SBS

| BLN

| POC

| KIL

| FRS

| FLM

| ISF

| WIN

| DSF

| SLM

| CLT

| TAL

| style="background:#DFDFDF;"| ATL
5

! 87th

! 205

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/1999/A|title=Jason Leffler – 1999 ARCA Bondo/Mar-Hyde Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

2000

| DAY

| SLM

| AND

| CLT

| KIL

| FRS

| MCH

| POC

| TOL

| KEN

| BLN

| POC

| WIN

| ISF

| KEN

| DSF

| SLM

| style="background:#EFCFFF;"| CLT
31

| TAL

| ATL

|

! 124th

! 100

! {{cite web|url=https://www.racing-reference.info/drivdet/lefflja01/2000/A|title=Jason Leffler – 2000 ARCA Bondo/Mar-Hyde Series Results|work=Racing-Reference|publisher=NASCAR Digital Media, LLC|access-date=April 4, 2023}}

See also

References

{{Reflist}}