| Season |
Races |
Champion |
Margin |
Most Wins
|
| 1973 |
4 |
Motoharu Kurosawa |
6 |
Noritake Takahara; Motoharu Kurosawa (2)
|
| 1974 |
4 |
Noritake Takahara |
25 |
Noritake Takahara (2)
|
| 1975 |
5 |
Kazuyoshi Hoshino |
TIE |
Masahiro Hasemi; Kazuyoshi Hoshino (2)
|
| 1976 |
5 |
Noritake Takahara |
14 |
Kazuyoshi Hoshino; Noritake Takahara (2)
|
| 1977 |
8 |
Kazuyoshi Hoshino |
5 |
Kunimitsu Takahashi; Kazuyoshi Hoshino (3)
|
| 1978 |
7 |
Kazuyoshi Hoshino |
4 |
Kazuyoshi Hoshino (3)
|
| 1979 |
7 |
Keiji Matsumoto |
1 |
Keiji Matsumoto (3)
|
| 1980 |
6 |
Masahiro Hasemi |
6 |
Masahiro Hasemi; Satoru Nakajima (2)
|
| 1981 |
5 |
Satoru Nakajima |
31 |
Satoru Nakajima (2)
|
| 1982 |
6 |
Satoru Nakajima |
25 |
Satoru Nakajima (4)
|
| 1983 |
8 |
Geoff Lees |
14 |
Geoff Lees (4)
|
| 1984 |
8 |
Satoru Nakajima |
5 |
Satoru Nakajima (4)
|
| 1985 |
8 |
Satoru Nakajima |
48 |
Satoru Nakajima (5)
|
| 1986 |
8 |
Satoru Nakajima |
5 |
Kazuyoshi Hoshino (3)
|
| 1987 |
9 |
Kazuyoshi Hoshino |
25 |
Kazuyoshi Hoshino (4)
|
| 1988 |
8 |
Aguri Suzuki |
2 |
Kazuyoshi Hoshino; Aguri Suzuki (3)
|
| 1989 |
8 |
Hitoshi Ogawa |
3 |
Kazuyoshi Hoshino; Ross Cheever (2)
|
| 1990 |
10 |
Kazuyoshi Hoshino |
24 |
Kazuyoshi Hoshino (6)
|
| 1991 |
10 |
Kazuyoshi Hoshino |
13 |
Ross Cheever (3)
|
| 1992 |
11 |
Mauro Martini |
4 |
Toshio Suzuki; Volker Weidler (2)
|
| 1993 |
9 |
Kazuyoshi Hoshino |
TIE |
Kazuyoshi Hoshino; Ross Cheever (2)
|
| 1994 |
10 |
Marco Apicella |
3 |
Marco Apicella; Andrew Gilbert-Scott (3)
|
| 1995 |
8 |
Toshio Suzuki |
5 |
Tora Takagi (3)
|
| 1996 |
10 |
Ralf Schumacher |
2 |
Ralf Schumacher (3)
|
| 1997 |
10 |
Pedro de la Rosa |
54 |
Pedro de la Rosa (6)
|
| 1998 |
9 |
Satoshi Motoyama |
7 |
Satoshi Motoyama (3)
|
| 1999 |
10 |
Tom Coronel |
4 |
Tom Coronel; Satoshi Motoyama (3)
|
| 2000 |
10 |
Tora Takagi |
51 |
Tora Takagi (8)
|
| 2001 |
10 |
Satoshi Motoyama |
16 |
Satoshi Motoyama (4)
|
| 2002 |
10 |
Ralph Firman |
2 |
Satoshi Motoyama (5)
|
| 2003 |
10 |
Satoshi Motoyama |
21 |
Satoshi Motoyama (4)
|
| 2004 |
9 |
Richard Lyons |
TIE |
Richard Lyons; Andre Lotterer; Benoit Treluyer (2)
|
| 2005 |
9 |
Benoit Treluyer |
13 |
Satoshi Motoyama (3)
|
| 2006 |
9 |
Benoit Treluyer |
14 |
Benoit Treluyer (4)
|
| 2007 |
9 |
Tsugio Matsuda |
1 |
Satoshi Motoyama; Takashi Kogure (3)
|
| 2008 |
11 |
Tsugio Matsuda |
31.5 |
Tsugio Matsuda (5)
|
| 2009 |
8 |
Loic Duval |
22 |
Loic Duval (4)
|
| 2010 |
8 |
Joao Paulo de Oliveira |
4.5 |
Loic Duval; Joao Paulo de Oliveira (2)
|
| 2011 |
7 |
Andre Lotterer |
14 |
Andre Lotterer (5)
|
| 2012 |
8 |
Kazuki Nakajima |
3 |
Andre Lotterer; Kazuki Nakajima; Takuya Izawa (2)
|
| 2013 |
8 |
Naoki Yamamoto |
TIE |
Andre Lotterer; Kazuki Nakajima (2)
|
| 2014 |
9 |
Kazuki Nakajima |
6.5 |
Joao Paulo de Oliveira (3)
|
| 2015 |
8 |
Hiroaki Ishiura |
6 |
Andre Lotterer (3)
|
| 2016 |
9 |
Yuji Kunimoto |
3 |
Stoffel Vandoorne; Yuhi Sekiguchi; Yuji Kunimoto (2)
|
| 2017 |
7 |
Hiroaki Ishiura |
0.5 |
Pierre Gasly; Yuhi Sekiguchi (2)
|
| 2018 |
6 |
Naoki Yamamoto |
1 |
Naoki Yamamoto (3)
|
| 2019 |
7 |
Nick Cassidy |
3 |
7 Drivers (1)
|
| 2020 |
7 |
Tomoki Nojiri |
2 |
Sho Tsuboi (2)
|
| 2021 |
7 |
Tomoki Nojiri |
31 |
Tomoki Nojiri (3)
|
| 2022 |
10 |
Tomoki Nojiri |
65 |
Ukyo Sasahara; Tomoki Nojiri; Ryo Hirakawa (2)
|
| 2023 |
9 |
Ritomo Miyata |
8 |
Liam Lawson; Tomoki Nojiri (3)
|
| 2024 |
9 |
Sho Tsuboi |
30.5 |
Sho Tsuboi (3)
|
| 2025 |
0 |
|
|
|
