World of Outlaws#World of Outlaws Sprint Car Series

File:SteveKinserWorldofOutlaws2007KingsRoyal.jpg's 2007 World of Outlaws sprint car at the King's Royal race]]

The series is a national tour of high power to weight, custom fabricated sprint cars. The race cars feature large adjustable wings on the top and large rear tires that transfer their power to the dirt tracks they race on. The series travels primarily the United States, but has sanctioned races in Canada, Mexico, and Australia.

The series was founded in 1978 by Ted Johnson, a former midget racer from Madison, Wisconsin. At the time sprint car racing in the United States lacked a true national series. Johnson organized the World of Outlaws sanctioning body and established a national schedule, a set of rules and a points system to crown a champion of his series.{{cite web|url=https://worldofoutlaws.com/history/|title=WORLD OF OUTLAWS HISTORY|publisher=worldofoutlaws.com|access-date=November 18, 2023}}{{cite news |last=Mecoy|first=Don|title= DIRT Motorsports Inc. |url=https://www.oklahoman.com/story/news/2005/09/14/dirt-motorsports-inc/61925271007/|newspaper=The Oklahoman|location=Oklahoma City OK|date= September 14, 2005|accessdate=May 16, 2024}}

In 2003, Johnson sold the series to Boundless Motor Sports Racing, later renamed Dirt Motorsports and currently World Racing Group (WRG).[https://www.hotrod.com/articles/ctrp-0703-dirt-motorsports/ Dirt Motorsports – Dirt Track Racing – The Power Of Dirt] – Rob Fisher, Hot Rod magazine, 22 January 2007 In 2004 WRG extended its subscription-based streaming service (DIRTVision), to the Outlaw series. It originally offered radio broadcasts of all races, and added video streaming to select races, until reaching the full calendar in 2018. Select races are broadcast on delay nationally on the CBS Sports Network{{cite web|url=http://www.performanceracing.com/news/cbs-sports-network-air-woo-super-dirt-action|title=CBS Sports Network To Air WoO, Super DIRT Action|publisher=Performance Racing Industry|date=October 8, 2013|access-date=August 1, 2014}}{{cite web|title=World of Outlaws Sprint Cars|url=http://www.woosprint.com|access-date=13 December 2013}} with MavTV showing the Knoxville Nationals since 2013.{{cite web|title=MAVTV TO AIR NATIONALS|url=http://www.knoxvilleraceway.com/Article/1735|website=www.knoxvilleraceway.com|access-date=2020-05-26}} Previous broadcasters include The Nashville Network and Speed Channel shown live or on delay.

A WoO Sprint Car must weigh at least 1,425 pounds (646kg) with the driver in the car.{{cite web |last1=World Racing Group |title=Section 6 - Weight |url=https://dirtcar.com/rules/sprint-car-series/sprint-technical-rules/sprint-weight/ |website=World of Outlaws Technical Rules |publisher=World Racing Group |access-date=2022-10-03 |ref=WRGWeight}} The mandated 410-cubic inch engine (6.7 litre) produces over 900 horsepower, uses mechanical fuel injection and must run on methanol fuel. The series' specification tire manufacturer works with the World of Outlaws to designate legal tire compounds for a circuit among different compounds available to competitors, as the tire must suitably respond to the track surface. Tire technicians will reject certain compounds at certain circuits if they are unfit for the surface or may provide an unfair advantage. The series' cars have a large top mounted wing with sideboards that face opposite directions to help produce a great amount of downforce to help the car turn and maximize grip, both in the corners and on the straightaways. The cars also have smaller wings on the nose to provide more downforce to the front wheels.World of Outlaws World Finals Official Program{{cite news|last=McFadden|first=Kyle|title=What Type Of Cars Are Used For Sprint Car Racing?|url= https://www.floracing.com/articles/11203571-what-type-of-cars-are-used-for-sprint-car-racing|publisher=FloRacing|date=August 22, 2023|access-date=May 18, 2024}}

Sprint cars use "quick change" rear ends. This allows the teams to quickly change the gear ratio for different size tracks.{{cite news|last=Shelton|first=Chris|title=Everything you need to know about quick change axles|url= https://inthegaragemedia.com/everything-you-need-to-know-about-quick-change-axles/ |publisher=In The Garage Media|date=October 27, 2022|access-date=May 18, 2024}} Most cars use a torsion bar suspension system. Different size bars either soften or stiffen the suspension. Torsion bars, and specialty shock absorbers are the key ingredients in the handling of sprint cars. That coupled with the wings, tire stagger, light weight, and enormous horsepower make these cars some of the fastest race cars in the world. The monstrous power-to-weight ratios of Sprint Cars can exceed that of Formula 1 cars in the right circumstances.

Sprint Cars have a very distinct stance since they have two very different sized rear tires. The right rear tire on a sprint car is 105 inches in circumference. In contrast, the left rear tire is only between 90 and 98 inches in circumference, depending on the track size and conditions. The difference in the tire sizes is called stagger. The more stagger the car has, the sharper the car can turn, but at the expense of straight line speed.{{cite news|last=Beard|first=David|title=How Outlaws go fast|url= https://www.caranddriver.com/features/a32035696/how-outlaws-go-fast/|publisher=Car and Driver|date=May 3, 2020|access-date=May 18, 2024}}

Sprint cars do not have starters, so push trucks are used to push the cars to start the engines. Sprint Cars only have an in/out direct drive with a fixed gear ratio, no reverse gear and no clutch.{{cite news|last=Baruth|first=Jack|title=There's Nothing In Racing Simpler–or Harder–Than Driving a Sprint Car |url=https://www.roadandtrack.com/car-culture/a21683868/learn-to-drive-sprint-car/|publisher=Road & Track|date=July 11, 2018|access-date=May 18, 2024}}

===Typical race night program===

1. Motor Heat & Wheel pack
2. Hot laps (practice laps)
3. Time trials (time trials or qualifying, usually two laps with the fastest lap being the qualifying time)
4. Heat races (set based on qualifying time)
5. Toyota Dash (sets the top three or four rows of the fastest cars for the A-main)
6. Last Chance Showdown (B-Main, C-Main or D-Main depending on car count)
7. Feature (A-Main, which can be anywhere from 25 to 55 laps)

===Past champions===

Source:{{cite web|url=https://worldofoutlaws.com/sprintcars/history/series-champions-rookie-of-the-year-1978-2019/|title=WORLD OF OUTLAWS SPRINT CAR CHAMPIONS & ROTY|publisher=worldofoutlaws.com|access-date=November 18, 2023}}

Note: Includes all full-field preliminary race wins.

Those with a yellow background indicates Knoxville National winners.

Updated March 23, 2025.{{cite web|url=https://worldofoutlaws.com/sprintcars/history/all-time-wins/|title=WORLD OF OUTLAWS SPRINT CAR ALL-TIME WINS LIST|publisher=worldofoutlaws.com|access-date=November 18, 2023}}

Source:

===Popular events===

Here is a list of top paying and more popular race events each year. Most are two days or more.

Final night features are usually based on points earned on the previous night's races.

An asterisk marks single-day events where the entire program is run on one day.

{{Reflist}}

{{Commons category|World of Outlaws}}

• [http://www.woosprint.com World of Outlaws official website]

{{World of Outlaws Sprint Car Series race venues}}

Category:Auto racing series in the United States

Category:Auto racing series in Canada

Category:Dirt track racing in the United States

Category:Open wheel racing