1991 / All-Japan Sports Prototype
Standings
| 1 |  Kazuyoshi Hoshino |
87 |
| 1 | Toshio Suzuki |
87 |
| 3 | Masanori Sekiya |
85 |
| 3 | Hitoshi Ogawa |
85 |
| 5 |  Geoff Lees |
54 |
| 6 | Akihiko Nakaya |
52 |
| 6 |  Volker Weidler |
52 |
| 8 |  George Fouché |
52 |
| 8 |  Steven Andskar |
52 |
| 10 | Anders Olofsson |
51 |
| 10 | Masahiro Hasemi |
51 |
| 12 | Eje Elgh |
40 |
| 13 |  Pierre-Henri Raphanel |
38 |
| 14 | Takashi Yorino |
29 |
| 15 |  Roland Ratzenberger |
27 |
| 16 |  Teo Fabi |
20 |
| 16 | Johnny Herbert |
20 |
| 16 |  David Kennedy |
20 |
| 16 |  David Brabham |
20 |
| 20 | Hideki Okada |
18 |
| 21 | Yojiro Terada |
15 |
| 22 |  Jeff Krosnoff |
12 |
| 22 | Mauro Martini |
12 |
| 24 | Bertrand Gachot |
10 |
| 24 | Takao Wada |
10 |
| 24 |  Maurizio Sandro Sala |
10 |
| 27 | Kunimitsu Takahashi |
8 |
| 27 | Stanley Dickens |
8 |
| 27 | Masatomo Shimizu |
8 |
| 27 | Masahiko Kageyama |
8 |
| 31 |  Anthony Reid |
7 |
| 31 | Tiff Needell |
7 |
| 33 | James Weaver |
6 |
| 33 | Kenny Acheson |
6 |
| 33 |  Pierre Dieudonné |
6 |
| 36 | Hisashi Yokoshima |
4 |
| 36 | Syuuji Fujii |
4 |
| 36 | Tetsuji Shiratori |
4 |
| 36 | Kiyoshi Misaki |
4 |
| 40 | Jonathan Palmer |
3 |
| 40 | Hideshi Matsuda |
3 |
| 40 | Hideo Fukuyama |
3 |
| 40 |  Oscar Larrauri |
3 |
| 40 | Naoki Nagasaka |
3 |
| 45 | Tetsuya Oota |
2 |
| 46 |  Harald Huysman |
1 |
| 46 | Will Hoy |
1 |