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Koudai Tsukakoshi

{{short description|Japanese racing driver}}

{{Use dmy dates|date=October 2024}}

{{Infobox racing driver

| name = Koudai Tsukakoshi

| image = File:Koudai Tsukakoshi at Super GT Malaysia Round in 2025.png

| imagesize =

| caption = Tsukakoshi at the 2025 Super GT Malaysia Festival

| nationality = {{flagicon|JPN}} Japanese

| birth_date = {{birth date and age|df=yes|1986|11|20}}

| birth_place = Imaichi (now Nikkō), Tochigi, Japan

| current series = Super GT

| first year = 2008

| current team = Real Racing

| car number = 17

| former teams =

| starts = 131

| wins = 5

| podiums = 30

| poles = 6

| fastest laps = 7

| best finish = 2nd

| year = 2013

| prev series = Super Formula
Formula Nippon
Formula 3 Euro Series
All-Japan Formula Three
Formula Dream

| prev series years = 2013–21
2009–2012
2008
2005–07
2004

| titles =

| title years =

}}

{{nihongo|Koudai Tsukakoshi|塚越広大|Tsukakoshi Kōdai|born 20 November 1986}} is a Japanese racing driver for Honda Racing Corporation who currently competes in Super GT for Astemo Real Racing.

Career

=Formula Three=

After competing in Formula Dream in 2004 and 2005, winning the championship in his second year, Tsukakoshi moved into the All-Japan Formula Three Championship for the final three rounds of the 2005 season, finishing fourteenth in the standings competing for M-TEC. He remained with the team for the 2006 season, finishing fifth in the standings, taking a victory at Suzuka. Another fifth place championship finish followed in 2007, as Tsukakoshi took two wins for Honda Team Real at Okayama and Suzuka. He also finished in second place at the prestigious Macau Grand Prix for Manor Motorsport; finishing behind Oliver Jarvis.{{cite news|url=http://www.macau.grandprix.gov.mo/gp54/news.php?kind=gp54&id=2105&lang=en|title=Jarvis dominates Polytec Formula Three Macau Grand Prix|work=Macau Grand Prix|publisher=Macau Grand Prix Committee|date=2007-11-18|access-date=2010-04-30}} Tsukakoshi moved to Manor Motorsport and the Formula Three Euroseries for the 2008 season.{{cite news|url=http://f3.gpupdate.net/en/f3euroseries-news/176738/japanese-f3-champion-joins-manor-motorsport/|title=Japanese F3 champion joins Manor Motorsport|work=gpupdate.net|publisher=GPUpdate|date=2008-01-02|access-date=2010-04-30|archive-url=https://web.archive.org/web/20091227014026/http://f3.gpupdate.net/en/f3euroseries-news/176738/japanese-f3-champion-joins-manor-motorsport/|archive-date=2009-12-27|url-status=dead}} He finished seventh in the championship standings, with a best result of second place on four occasions.

=Super Formula=

file:Koudai Tsukakoshi 2010 Motorsport Japan.jpg

After a season in Europe, Tsukakoshi made his debut in Formula Nippon in 2009 with HFDP Racing which run by Real Racing. He raced with them before move to Dandelion Racing. He competed with the team, and he managed to close to win the title, just lose out to Kazuki Nakajima by three points. In 2013, he returns to Real Racing, and he raced with them for six seasons. Tsukakoshi initially not compete for 2019 season, bu he replaces Tristan Charpentier after the first round because he had qualified two seconds off the pace in the first round and crashed heavily in the race. Tsukakoshi then race for the rest of the season.{{cite web|url=https://www.motorsport.com/super-formula/news/real-racing-charpentier-tsukakoshi-autopolis/4384350/|title=Rookie Charpentier axed after one Super Formula race|last=Thukral|first=Rachit|work=Motorsport.com|date=9 May 2019|accessdate=9 May 2019}} Real Racing announced it has withdrawn from the 2020 season thus left Tsukakoshi without a seat.{{Cite news|url=https://www.motorsport.com/super-formula/news/real-racing-withdraws-2020-season/4697446/|title=Real Racing withdraws from 2020 Super Formula season|publisher=Motorsport Network|date=27 February 2020}} He then moves to new team Drago Corse to cover for Tatiana Calderon who unable to enter Japan due to visa issues.{{Cite web|title=Tatiana Calderon forced to miss Okayama Super Formula round|url=https://www.motorsport.com/super-formula/news/calderon-okayama-tsukakoshi-drago-corse/4879039/|access-date=2020-09-22|website=www.motorsport.com|date=21 September 2020 |language=en}} Calderon missed Autopolis, Sugo, and the fifth round at Motegi and Tsukakoshi was her replacement.{{fact|date=October 2024}}

Tsukakoshi thn picked by the series to develop the new Dallara-built SF23 chassis as the test driver of Honda representative. Also he is part of new Threebond Racing formerly Drago Corse as an advisory.{{Cite web|url=https://au.motorsport.com/super-formula/news/threebond-drago-corse-2023-fukuzumi/10434399/|title=ThreeBond takes over Drago Corse Super Formula entry|date=21 February 2023|work=motorsports.com|access-date=21 February 2023}}

=Super GT=

Tsukakoshi made one race debut with Real Racing in 2008. After that he is the main driver for Real Racing from 2009 till now. He won many races in his Super GT career, and managed to get runners up in 2013.{{fact|date=October 2024}}

Racing record

=Career summary=

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

! Season

! Series

! Team

! Races

! Wins

! Poles

! F/Laps

! Podiums

! Points

! Position

2005

|align=left| Japanese Formula 3 Championship

|align=left| Honda Team M-TEC

| 5

| 0

| 0

| 0

| 0

| 19

| 14th

2006

|align=left| Japanese Formula 3 Championship

|align=left| Honda Team M-TEC

| 18

| 1

| 5

| 2

| 6

| 153

| 5th

2007

|align=left| Japanese Formula 3 Championship

|align=left| Honda Team Real

| 20

| 2

| 2

| 1

| 7

| 182

| 5th

rowspan="2" | 2008

|align=left| Formula 3 Euro Series

|align=left| Manor Motorsport

| 20

| 0

| 0

| 0

| 4

| 36

| 7th

align=left| Super GT - GT500

|align=left| Real Racing

| 1

| 0

| 0

| 0

| 0

| 0

| NC

rowspan="2" | 2009

|align=left| Super GT - GT500

|align=left| Real Racing

| 9

| 0

| 0

| 0

| 2

| 51

| 5th

align=left| Formula Nippon

|align=left| HFDP Racing

| 8

| 0

| 0

| 1

| 0

| 20

| 7th

rowspan="2" | 2010

|align=left| Super GT - GT500

|align=left| Real Racing

| 8

| 1

| 1

| 1

| 2

| 53

| style="background:#FFDF9F;"| 3rd

align=left| Formula Nippon

|align=left| HFDP Racing

| 8

| 0

| 0

| 0

| 1

| 9

| 9th

rowspan="2" | 2011

|align=left| Super GT - GT500

|align=left| Real Racing

| 8

| 0

| 1

| 0

| 3

| 50

| 4th

align=left| Formula Nippon

|align=left| Docomo Team Dandelion Racing

| 7

| 0

| 1

| 0

| 2

| 26.5

| 4th

rowspan="2" | 2012

|align=left| Super GT - GT500

|align=left| Real Racing

| 8

| 0

| 0

| 0

| 1

| 30

| 12th

align=left| Formula Nippon

|align=left| Docomo Team Dandelion Racing

| 8

| 1

| 1

| 0

| 6

| 43

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

rowspan="2" | 2013

|align=left| Super GT - GT500

|align=left| Real Racing

| 8

| 0

| 0

| 0

| 4

| 64

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

align=left| Super Formula

|align=left| HP Real Racing

| 7

| 0

| 0

| 0

| 0

| 3

| 15th

rowspan="2" | 2014

|align=left| Super GT - GT500

|align=left| Real Racing

| 8

| 0

| 1

| 0

| 1

| 24

| 12th

align=left| Super Formula

|align=left| HP Real Racing

| 9

| 0

| 0

| 0

| 0

| 8.5

| 11th

rowspan="2" | 2015

|align=left| Super GT - GT500

|align=left| Real Racing

| 8

| 0

| 0

| 0

| 2

| 30

| 8th

align=left| Super Formula

|align=left| Real Racing

| 8

| 0

| 0

| 0

| 0

| 0

| 17th

rowspan="2" | 2016

|align=left| Super GT - GT500

|align=left| Keihin Real Racing

|8

|0

|0

|1

|1

|27

|11th

align=left| Super Formula

|align=left| Real Racing

| 9

| 0

| 0

| 0

| 0

| 11

| 11th

rowspan="2" | 2017

|align=left| Super GT - GT500

|align=left| Keihin Real Racing

|8

|0

|0

|0

|2

|37

|10th

align=left| Super Formula

|align=left| Real Racing

| 7

| 0

| 0

| 0

| 0

| 3

| 15th

rowspan="2" | 2018

|align=left| Super GT - GT500

|align=left| Keihin Real Racing

|8

|1

|1

|1

|2

|45

|7th

align=left| Super Formula

|align=left| Real Racing

| 7

| 0

| 0

| 0

| 0

| 6

| 13th

rowspan="2" | 2019

|align=left| Super GT - GT500

|align=left| Keihin Real Racing

| 8

| 0

| 2

| 2

| 1

| 39

| 6th

align=left| Super Formula

|align=left| Real Racing

| 6

| 0

| 0

| 0

| 0

| 2

| 19th

rowspan="2" | 2020

|align=left| Super GT - GT500

|align=left| Keihin Real Racing

| 8

| 2

| 0

| 0

| 2

| 59

| style="background:#ffdf9f;"|3rd

align=left| Super Formula

|align=left| Drago Corse with ThreeBond

| 2

| 0

| 0

| 0

| 0

| 0

| 24th

rowspan="2" | 2021

|align=left| Super GT - GT500

|align=left| Astemo Real Racing

| 8

| 1

| 0

| 0

| 2

| 52

| 6th

align=left| Super Formula

|align=left| Drago Corse with ThreeBond

| 3

| 0

| 0

| 0

| 0

| 0

| 22nd

2022

|align=left| Super GT - GT500

|align=left| Astemo Real Racing

| 8

| 1

| 0

| 0

| 3

| 60

| 4th

2023

|align=left| Super GT - GT500

|align=left| Astemo Real Racing

| 8

| 0

| 0

| 0

| 1

| 45

| 6th

2024

|align=left| Super GT - GT500

|align=left| Astemo Real Racing

|8

|0

|1

|0

|2

|43

|10th

2025

|align=left| Super GT - GT500

|align=left| Astemo Real Racing

|1

|0

|0

|0

|0

|3

|8th*

=Complete Japanese Formula 3 results=

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

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

! Year

! Team

! Engine

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! 10

! 11

! 12

! 13

! 14

! 15

! 16

! 17

! 18

! 19

! 20

! DC

! Pts

2005

! Honda Team M-TEC

! Mugen

| MOT
1

| MOT
2

| SUZ
1

| SUZ
2

| SUG
1

| SUG
2

| FUJ
1

| FUJ
2

| OKA
1

| OKA
2

| SUZ
1

| SUZ
2

| MIN
1

| MIN
2

|style="background:#CFCFFF;"| FUJ
1
{{small|11}}

|style="background:#DFFFDF;"| FUJ
2
{{small|7}}

|style="background:#DFFFDF;"| MIN
1
{{small|7}}

|style="background:#DFFFDF;"| MIN
2
{{small|8}}

|style="background:#CFCFFF;"| MOT
1
{{small|12}}

|style="background:#DFFFDF;"| MOT
2
{{small|5}}

! 14th

! 19

2006

! Honda Team M-TEC

! Mugen

| style="background:#DFDFDF;" | FUJ
1
{{small|2}}

| style="background:#DFFFDF;" | FUJ
2
{{small|5}}

| style="background:#CFCFFF;" | SUZ
1
{{small|12}}

| style="background:#DFFFDF;"| SUZ
2
{{small|9}}

| style="background:#DFFFDF;"| MOT
1
{{small|7}}

| style="background:#FFDF9F;"| MOT
2
{{small|3}}

| style="background:#DFDFDF;"| OKA
1
{{small|2}}

| style="background:#DFFFDF;"| OKA
2
{{small|4}}

| style="background:#FFFFBF;"| SUZ
1
{{small|1}}

| style="background:#DFDFDF;"| SUZ
2
{{small|2}}

| style="background:#DFFFDF;"| AUT
1
{{small|7}}

| style="background:#DFFFDF;"| AUT
2
{{small|4}}

| style="background:#CFCFFF;"| FUJ
1
{{small|13}}

| style="background:#CFCFFF;"| FUJ
2
{{small|11}}

| style="background:#DFFFDF;"| SUG
1
{{small|5}}

| style="background:#DFFFDF;"| SUG
2
{{small|5}}

| style="background:#DFDFDF;"| MOT
1
{{small|2}}

| style="background:#CFCFFF;"| MOT
2
{{small|11}}

|

|

! 5th

! 153

2007

! Honda Team Real

! Mugen

| style="background:#DFFFDF;"| FUJ
1
{{small|7}}

| style="background:#DFFFDF;"| FUJ
2
{{small|5}}

| style="background:#DFFFDF;"| SUZ
1
{{small|5}}

| style="background:#DFFFDF;"| SUZ
2
{{small|6}}

| style="background:#FFDF9F;"| MOT
1
{{small|3}}

| style="background:#DFFFDF;"| MOT
2
{{small|4}}

| style="background:#FFDF9F;"| OKA
1
{{small|3}}

| style="background:#FFFFBF;"| OKA
2
{{small|1}}

| style="background:#FFDF9F;"| SUZ
1
{{small|3}}

| style="background:#FFFFBF;"| SUZ
2
{{small|1}}

| style="background:#DFFFDF;"| AUT
1
{{small|5}}

| style="background:#DFFFDF;"| AUT
2
{{small|5}}

| style="background:#EFCFFF;"| AUT
3
{{small|Ret}}

| style="background:#DFDFDF;"| FUJ
1
{{small|2}}

| style="background:#DFDFDF;"| FUJ
2
{{small|2}}

| style="background:#DFFFDF;"| SEN
1
{{small|6}}

| style="background:#DFFFDF;"| SEN
2
{{small|8}}

| style="background:#DFFFDF;"| SEN
3
{{small|4}}

| style="background:#DFFFDF;"| MOT
1
{{small|5}}

| style="background:#DFFFDF;"| MOT
2
{{small|8}}

! 5th

! 182

=Complete Super GT results=

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

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

! Team

! Car

! Class

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! DC

! Points

2008

! Real Racing

! Honda NSX

! GT500

|style="background:#FFFFFF;"|SUZ

|style="background:#FFFFFF;"|OKA

|style="background:#FFFFFF;"|FUJ

|style="background:#FFFFFF;"|SEP

|style="background:#FFFFFF;"|SUG

|style="background:#EFCFFF;"|SUZ
{{small|Ret}}

|style="background:#FFFFFF;"|MOT

|style="background:#FFFFFF;"|AUT

|style="background:#FFFFFF;"|FUJ

!25th

!1

2009

! Real Racing

! Honda NSX

! GT500

|style="background:#DFFFDF;"|OKA
{{small|5}}

|style="background:#DFFFDF;"|SUZ
{{small|6}}

|style="background:#CFCFFF;"|FUJ
{{small|12}}

|style="background:#DFDFDF;"|SEP
{{small|2}}

|style="background:#DFFFDF;"|SUG
{{small|6}}

|style="background:#DFFFDF;"|SUZ
{{small|10}}

|style="background:#DFFFDF;"|FUJ
{{small|4}}

|style="background:#EFCFFF;"|AUT
{{small|Ret}}

|style="background:#FFDF9F;"|MOT
{{small|3}}

!5th

!51

2010

! Real Racing

! Honda HSV-010 GT

! GT500

|style="background:#DFFFDF;"|SUZ
{{small|7}}

|style="background:#DFFFDF;"|OKA
{{small|7}}

|style="background:#DFFFDF;"|FUJ
{{small|5}}

|style="background:#CFCFFF;"|SEP
{{small|12}}

|style="background:#FFFFBF;"|SUG
{{small|1}}

|style="background:#DFFFDF;"|SUZ
{{small|4}}

|style="background:#FFFFFF;"|FUJ
{{small|C}}

|style="background:#FFDF9F;"|MOT
{{small|3}}

|

!style="background:#FFDF9F;"| 3rd

!style="background:#FFDF9F;"| 53

2011

! Real Racing

! Honda HSV-010 GT

! GT500

|style="background:#FFDF9F;"|OKA
{{small|3}}

|style="background:#DFFFDF;"|FUJ
{{small|8}}

|style="background:#FFDF9F;"|SEP
{{small|3}}

|style="background:#DFFFDF;"|SUG
{{small|6}}

|style="background:#CFCFFF;"|SUZ
{{small|12}}

|style="background:#FFDF9F;"|FUJ
{{small|3}}

|style="background:#DFFFDF;"|AUT
{{small|6}}

|style="background:#DFFFDF;"|MOT
{{small|7}}

|

!4th

!50

2012

! Real Racing

! Honda HSV-010 GT

! GT500

|style="background:#FFDF9F;"|OKA
{{small|3}}

|style="background:#DFFFDF;"|FUJ
{{small|6}}

|style="background:#DFFFDF;"|SEP
{{small|7}}

|style="background:#DFFFDF;"|SUG
{{small|9}}

|style="background:#DFFFDF;"|SUZ
{{small|10}}

|style="background:#DFFFDF;"|FUJ
{{small|5}}

|style="background:#CFCFFF;"|AUT
{{small|14}}

|style="background:#EFCFFF;"|MOT
{{small|Ret}}

|

!12th

!30

2013

! Real Racing

! Honda HSV-010 GT

! GT500

|style="background:#DFDFDF;"|OKA
{{small|2}}

|style="background:#EFCFFF;"|FUJ
{{small|Ret}}

|style="background:#DFFFDF;"|SEP
{{small|5}}

|style="background:#EFCFFF;"|SUG
{{small|Ret}}

|style="background:#DFFFDF;"|SUZ
{{small|7}}

|style="background:#DFDFDF;"|FUJ
{{small|2}}

|style="background:#FFDF9F;"|AUT
{{small|3}}

|style="background:#DFDFDF;"|MOT
{{small|2}}

|

!style="background:#DFDFDF;"| 2nd

!style="background:#DFDFDF;"| 67

2014

! Real Racing

! Honda NSX Concept-GT

! GT500

|style="background:#DFFFDF;"|OKA
{{small|6}}

|style="background:#EFCFFF;"|FUJ
{{small|Ret}}

|style="background:#EFCFFF;"|AUT
{{small|Ret}}

|style="background:#FFDF9F;"|SUG
{{small|3}}

|style="background:#DFFFDF;"|FUJ
{{small|4}}

|style="background:#EFCFFF;"|SUZ
{{small|Ret}}

|style="background:#CFCFFF;"|BUR
{{small|12}}

|style="background:#CFCFFF;"|MOT
{{small|15}}

|

!12th

!24

2015

! Real Racing

! Honda NSX Concept-GT

! GT500

|style="background:#CFCFFF;"|OKA
{{small|12}}

|style="background:#DFFFDF;"|FUJ
{{small|4}}

|style="background:#FFDF9F;"|CHA
{{small|3}}

|style="background:#DFFFDF;"|FUJ
{{small|8}}

|style="background:#EFCFFF;"|SUZ
{{small|Ret}}

|style="background:#DFFFDF;"|SUG
{{small|8}}

|style="background:#FFDF9F;"|AUT
{{small|3}}

|style="background:#DFFFDF;"|MOT
{{small|8}}

|

!8th

!39

2016

! Keihin Real Racing

! Honda NSX Concept-GT

! GT500

|style="background:#CFCFFF;"| OKA
{{small|11}}

|style="background:#CFCFFF;"| FUJ
{{small|12}}

|style="background:#DFFFDF;"| SUG
{{small|6}}

|style="background:#DFDFDF;"| FUJ
{{small|2}}

|style="background:#DFFFDF;"| SUZ
{{small|10}}

|style="background:#DFFFDF;"| CHA
{{small|6}}

|style="background:#EFCFFF;"| MOT
{{small|Ret}}

|style="background:#CFCFFF;"| MOT
{{small|11}}

|

! 11th

! 27

2017

! Keihin Real Racing

! Honda NSX Concept-GT

! GT500

|style="background:#CFCFFF;"| OKA
{{small|11}}

|style="background:#DFFFDF;"| FUJ
{{small|8}}

|style="background:#DFDFDF;"| AUT
{{small|2}}

|style="background:#EFCFFF;"| SUG
{{small|Ret}}

|style="background:#EFCFFF;"| FUJ
{{small|Ret}}

|style="background:#CFCFFF;"| SUZ
{{small|15}}

|style="background:#FFDF9F;"| CHA
{{small|3}}

|style="background:#DFFFDF;"| MOT
{{small|4}}

|

! 10th

! 37

2018

! Keihin Real Racing

! Honda NSX-GT

! GT500

|style="background:#FFFFBF;"| OKA
{{small|1}}

|style="background:#CFCFFF;"| FUJ
{{small|11}}

|style="background:#CFCFFF;"| SUZ
{{small|11}}

|style="background:#DFFFDF;"| CHA
{{small|7}}

|style="background:#FFDF9F;"| FUJ
{{small|3}}

|style="background:#DFFFDF;"| SUG
{{small|9}}

|style="background:#DFFFDF;"| AUT
{{small|6}}

|style="background:#CFCFFF;"| MOT
{{small|15}}

|

! 7th

! 45

2019

! Keihin Real Racing

! Honda NSX-GT

! GT500

|style="background:#CFCFFF;"| OKA
{{small|14}}

|style="background:#DFFFDF;"| FUJ
{{small|5}}

|style="background:#EFCFFF;"| SUZ
{{small|Ret}}

|style="background:#CFCFFF;"| CHA
{{small|13}}

|style="background:#DFFFDF;"| FUJ
{{small|8}}

|style="background:#DFDFDF;"| AUT
{{small|2}}

|style="background:#DFFFDF;"| SUG
{{small|5}}

|style="background:#DFFFDF;"| MOT
{{small|5}}

|

! 6th

! 39

2020

! Keihin Real Racing

! Honda NSX-GT

! GT500

|style="background:#EFCFFF;"| FUJ
{{small|Ret}}

|style="background:#FFFFBF;"| FUJ
{{small|1}}

|style="background:#DFFFDF;"| SUZ
{{small|8}}

|style="background:#FFFFBF;"| MOT
{{small|1}}

|style="background:#DFFFDF;"| FUJ
{{small|10}}

|style="background:#DFFFDF;"| SUZ
{{small|10}}

|style="background:#DFFFDF;"| MOT
{{small|5}}

|style="background:#DFFFDF;"| FUJ
{{small|4}}

|

!style="background:#FFDF9F;"| 3rd

!style="background:#FFDF9F;"| 59

2021

! Astemo Real Racing

! Honda NSX-GT

! GT500

|style="background:#DFFFDF;"| OKA
{{small|5}}

|style="background:#ffffbf;"| FUJ
{{small|1}}

|style="background:#CFCFFF;"| SUZ
{{small|14}}

|style="background:#DFFFDF;"| MOT
{{small|7}}

|style="background:#ffdf9f;"| SUG
{{small|3}}

|style="background:#DFFFDF;"| AUT
{{small|8}}

|style="background:#DFFFDF;"| MOT
{{small|4}}

|style="background:#efcfff;"| FUJ
{{small|Ret}}

|

! 6th

! 52

2022

! Astemo Real Racing

! Honda NSX-GT

! GT500

|style="background:#dfffdf;"| OKA
{{small|9}}

|style="background:#dfffdf;"| FUJ
{{small|9}}

|style="background:#dfdfdf;"| SUZ
{{small|2}}

|style="background:#dfffdf;"| FUJ
{{small|10}}

|style="background:#dfdfdf;"| SUZ
{{small|2}}

|style="background:#cfcfff;"| SUG
{{small|12}}

|style="background:#ffffbf;"| AUT
{{small|1}}

|style="background:#dfffdf;"| MOT
{{small|5}}

|

! 4th

! 60

2023

! Astemo Real Racing

! Honda NSX-GT

! GT500

|style="background:#dfffdf;"| OKA
{{small|7}}

|style="background:#ffdf9f;"| FUJ
{{small|3}}

|style="background:#dfffdf;"| SUZ
{{small|9}}

|style="background:#dfffdf;"| FUJ
{{small|7}}

|style="background:#dfffdf;" | SUZ
{{small|4}}

|style="background-color:#000000;color:white" | Sportsland Sugo
{{small|DSQ}}

|style="background:#dfffdf;"| AUT
{{small|6}}

|style="background:#ffdf9f"| MOT
{{small|3}}

|

! 6th

! 45

2024

! Astemo Real Racing

! Honda Civic Type R-GT GT500

! GT500

|style="background:#EFCFFF;"| OKA
{{small|Ret}}

|style="background:#FFDF9F;"| FUJ
{{small|31}}

|style="background:#DFFFDF;"| SUZ
{{small|6}}

|style="background:#DFFFDF;"| FUJ
{{small|8}}

|style="background:#DFFFDF;"| SUZ
{{small|7}}

|style="background:#EFCFFF;"| SUG
{{small|Ret}}

|style="background:#CFCFFF;"| AUT
{{small|14†}}

|style="background:#DFDFDF;"| MOT
{{small|22}}

|

! 10th

! 43

2025

! Astemo Real Racing

! Honda Civic Type R-GT GT500

! GT500

|style="background:#DFFFDF;"| OKA
{{small|8}}

|style="background:#;"| FUJ
{{small

}

|style="background:#;"| SEP
{{small|}}

|style="background:#;"| FUJ
{{small|}}

|style="background:#;"| SUZ
{{small|}}

|style="background:#;"| SUG
{{small|}}

|style="background:#;"| AUT
{{small|}}

|style="background:#;"| MOT
{{small|}}

|

! 8th*

! 3

|}

=Complete Formula Nippon/Super Formula results=

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

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

! Year

! Honda

! Engine

! 1

! 2

! 3

! 4

! 5

! 6

! 7

! 8

! 9

! DC

! Points

2009

! HFDP Racing

! Honda

|style="background:#DFFFDF;"| FUJ
{{small|6}}

|style="background:#DFFFDF;"| SUZ
{{small|5}}

|style="background:#DFFFDF;"| MOT
{{small|4}}

|style="background:#DFFFDF;"| FUJ
{{small|6}}

|style="background:#CFCFFF;"| SUZ
{{small|9}}

|style="background:#CFCFFF;"| MOT
{{small|10}}

|style="background:#EFCFFF;"| AUT
{{small|Ret}}

|style="background:#DFFFDF;"| SUG
{{small|4}}

|

!7th

!20

2010

! HFDP Racing

! Honda

|style="background:#DFFFDF;"| SUZ
{{small|8}}

|style="background:#DFDFDF;"| MOT
{{small|2}}

|style="background:#CFCFFF;"| FUJ
{{small|11}}

|style="background:#CFCFFF;"| MOT
{{small|10}}

|style="background:#EFCFFF;"| SUG
{{small|Ret}}

|style="background:#EFCFFF;"| AUT
{{small|Ret}}

|style="background:#CFCFFF;"| SUZ
{{small|10}}

|style="background:#CFCFFF;"| SUZ
{{small|12}}

|

!9th

!9

2011

! Docomo Team Dandelion Racing

! Honda

|style="background:#DFFFDF;"| SUZ
{{small|7}}

|style="background:#FFDF9F;"|AUT
{{small|3}}

|style="background:#DFFFDF;"| FUJ
{{small|5}}

|style="background:#DFFFDF;"| MOT
{{small|4}}

|style="background:#FFFFFF;"| SUZ
{{small|C}}

|style="background:#DFFFDF;"| SUG
{{small|4}}

|style="background:#FFDF9F;"| MOT
{{small|3}}

|style="background:#DFFFDF;"| MOT
{{small|8}}

|

!4th

!26.5

2012

! Docomo Team Dandelion Racing

! Honda

|style="background:#DFDFDF;"| SUZ
{{small|2}}

|style="background:#DFFFDF;"| MOT
{{small|5}}

|style="background:#FFFFBF;"| AUT
{{small|1}}

|style="background:#CFCFFF;"| FUJ
{{small|9}}

|style="background:#FFDF9F;"| MOT
{{small|3}}

|style="background:#DFDFDF;"| SUG
{{small|2}}

|style="background:#FFDF9F;"| SUZ
{{small|3}}

|style="background:#FFDF9F;"| SUZ
{{small|3}}

|

!style="background:#DFDFDF;"| 2nd

!style="background:#DFDFDF;"| 43

2013

! HP Real Racing

! Honda

|style="background:#CFCFFF;"| SUZ
{{small|9}}

|style="background:#DFFFDF;"| AUT
{{small|6}}

|style="background:#CFCFFF;"| FUJ
{{small|9}}

|style="background:#CFCFFF;"| MOT
{{small|9}}

|style="background:#EFCFFF;"| SUG
{{small|Ret}}

|style="background:#EFCFFF;"| SUZ
{{small|Ret}}

|style="background:#EFCFFF;"| SUZ
{{small|Ret}}

|

|

!15th

!3

2014

! HP Real Racing

! Honda

|style="background:#CFCFFF;" | SUZ
{{small|14}}

|FUJ
{{small|DNS}}

|style="background:#CFCFFF;"| FUJ
{{small|9}}

|style="background:#EFCFFF;"| FUJ
{{small|Ret}}

|style="background:#DFFFDF;"| MOT
{{small|6}}

|style="background:#DFFFDF;"| AUT
{{small|4}}

|style="background:#EFCFFF;"| SUG
{{small|Ret}}

|style="background:#DFFFDF;"| SUZ
{{small|8}}

|style="background:#CFCFFF;"| SUZ
{{small|13}}

! 11th

! 8.5

2015

! Real Racing

! Honda

|style="background:#ffffff;"| SUZ
{{small|DNS}}

|style="background:#cfcfff;"| OKA
{{small|14}}

|style="background:#cfcfff;"| FUJ
{{small|13}}

|style="background:#efcfff;"| MOT
{{small|Ret}}

|style="background:#cfcfff;"| AUT
{{small|17}}

|style="background:#cfcfff;"| SUG
{{small|9}}

|style="background:#cfcfff;"| SUZ
{{small|9}}

|style="background:#cfcfff;"| SUZ
{{small|11}}

|

! 17th

! 0

2016

! Real Racing

! Honda

|style="background:#dfffdf;"| SUZ
{{small|5}}

|style="background:#dfdfdf;"| OKA
{{small|2}}

|style="background:#dfffdf;"| FUJ
{{small|8}}

|style="background:#cfcfff;"| MOT
{{small|12}}

|style="background:#dfffdf;"| OKA
{{small|5}}

|style="background:#cfcfff;"| OKA
{{small|11}}

|style="background:#cfcfff;"| SUG
{{small|11}}

|style="background:#cfcfff;"| SUZ
{{small|11}}

|style="background:#cfcfff;"| SUZ
{{small|12}}

! 11th

! 11

2017

! Real Racing

! Honda

|style="background:#dfffdf;"| SUZ
{{small|6}}

|style="background:#cfcfff;"| OKA
{{small|11}}

|style="background:#cfcfff;"| OKA
{{small|16}}

|style="background:#cfcfff;"| FUJ
{{small|9}}

|style="background:#cfcfff;"| MOT
{{small|9}}

|style="background:#cfcfff;"| AUT
{{small|9}}

|style="background:#cfcfff;"| SUG
{{small|16}}

|style="background:#ffffff;"| SUZ
{{small|C}}

|style="background:#ffffff;"| SUZ
{{small|C}}

! 15th

! 3

2018

! Real Racing

! Honda

|style="background:#dfffdf;"| SUZ
{{small|6}}

|style="background:#ffffff;"| AUT
{{small|C}}

|style="background:#cfcfff;"| SUG
{{small|12}}

|style="background:#cfcfff;"| FUJ
{{small|13}}

|style="background:#cfcfff;"| MOT
{{small|10}}

|style="background:#cfcfff;"| OKA
{{small|12}}

|style="background:#dfffdf;"| SUZ
{{small|6}}

|

|

! 13th

! 6

2019

! Real Racing

! Honda

|SUZ

|style="background:#cfcfff;"| AUT
{{small|15}}

|style="background:#cfcfff;"| SUG
{{small|9}}

|style="background:#cfcfff;"| FUJ
{{small|18}}

|style="background:#cfcfff;"| MOT
{{small|18}}

|style="background:#cfcfff;"| OKA
{{small|14}}

|style="background:#dfffdf;"| SUZ
{{small|7}}

|

|

! 19th

! 2

2020

! Drago Corse with ThreeBond

! Honda

|MOT

|style="background:#cfcfff;"| OKA
{{small|12}}

|style="background:#efcfff;"| SUG
{{small|Ret}}

|AUT

|SUZ

|SUZ

|FUJ

|

|

!24th

!0

2021

! Drago Corse with ThreeBond

! Honda

| style="background:#;" | FUJ
{{small

}

|style="background:#;"| SUZ
{{small|}}

|style="background:#CFCFFF;"| AUT
{{small|13}}

|style="background:#CFCFFF;"| SUG
{{small|16}}

|style="background:#EFCFFF;"| MOT
{{small|Ret}}

|style="background:#;"| MOT
{{small|}}

|style="background:#;"| SUZ
{{small|}}

|

|

! 22nd

! 0

|}

References

{{Reflist}}

{{-}}

External links

{{commons category}}

  • [http://www.tsukakoshikoudai.net/ Official website]
  • {{DriverDB driver|koudai-tsukakoshi}}

{{DEFAULTSORT:Tsukakoshi, Koudai}}

Category:1986 births

Category:Living people

Category:Sportspeople from Tochigi Prefecture

Category:Japanese racing drivers

Category:Japanese Formula 3 Championship drivers

Category:Super GT drivers

Category:Formula 3 Euro Series drivers

Category:Formula Nippon drivers

Category:Super Formula drivers

Category:Manor Motorsport drivers

Category:21st-century Japanese sportsmen

Category:Dandelion Racing drivers

Category:Prema Powerteam drivers