Entry list
- ^1 – At Round 5 at Fuji Speedway, the C1 and C classes were renamed LD2 and LD1 respectively as the race was part of the Fuji Long Distance Series.
The 1992 All Japan Sports Prototype Car Endurance Championship was the tenth and final season of the All Japan Sports Prototype Championship, which would be replaced by the All Japan Grand Touring Car Championship, as sportscar racing in the early 1990s changed drastically with the decline of prototypes. The C1 class champion was the #1 Nissan Motorsports Nissan R92CP driven by Kazuyoshi Hoshino and the C class champion was the #7 and #36 TOM'S Toyota TS010 driven by Geoff Lees.
All races were held in Japan.
| Round | Race | Circuit | Date |
|---|---|---|---|
| 1 | International Suzuka 500 km | Suzuka Circuit | 19 April |
| 2 | Fuji 1000 km | Fuji Speedway | 4 May |
| 3 | Fuji 500 Miles | Fuji Speedway | 26 July |
| 4 | SUGO International 500 km | Sportsland SUGO | 13 September |
| 5 | Fuji 1000 km | Fuji Speedway | 4 October |
| 6 | Inter-Challenge Cup Mine 500 km | Mine Circuit | 1 November |
Overall winner in bold. Season results as follows: [1]
| Round | Circuit | C1 Winning Team | C Winning Team |
|---|---|---|---|
| C1 Winning Drivers | C Winning Drivers | ||
| 1 | Suzuka Circuit | #24 Nissan Motorsports Nissan R92CP | Did Not Participate |
 Masahiro Hasemi  Jeff Krosnoff Masahiko Kageyama | |||
| 2 | Mt. Fuji | #1 Nissan Motorsports Nissan R92CP | None |
| Kazuyoshi Hoshino Toshio Suzuki | |||
| 3 | Mt. Fuji | #1 Nissan Motorsports Nissan R92CP | #5 Mazdaspeed Mazda MXR-01 |
| Kazuyoshi Hoshino Toshio Suzuki | Yojiro Terada  Maurizio Sandro Sala | ||
| 4 | Sportsland SUGO | #1 Nissan Motorsports Nissan R92CP | None |
| Kazuyoshi Hoshino Toshio Suzuki | |||
| 5 | Mt. Fuji Report | #1 Nissan Motorsports Nissan R92CP | #7 TOM'S Toyota TS010 |
| Kazuyoshi Hoshino Toshio Suzuki |  Geoff Lees  Jan Lammers | ||
| 6 | Mine Circuit | #1 Nissan Motorsports Nissan R92CP | #36 TOM'S Toyota TS010 |
| Kazuyoshi Hoshino Takao Wada | Geoff Lees Jan Lammers | ||
| Rank | Drivers | Number/Team | Points | Wins | Distance |
|---|---|---|---|---|---|
| 1 | Kazuyoshi Hoshino | #1 Nissan Motorsports Nissan R92CP | 103 | 5 | 2640.506 km |
| 2 | Toshio Suzuki | #1 Nissan Motorsports Nissan R92CP | 83 | 4 | 1696.02 km |
| 3 |  Pierre-Henri Raphanel | #8 TOM'S Toyota 92C-V #36 TOM'S Toyota 92C-V | 73 | 0 | 2159.371 km |
| 4 | Masanori Sekiya | #8 TOM'S Toyota 92C-V #36 TOM'S Toyota 92C-V | 73 | 0 | 2033.509 km |
| 5 | Masahiro Hasemi | #24 Nissan Motorsports Nissan R92CP | 68 | 1 | 2054.971 km |
| Rank | Drivers | Number/Team | Points | Wins | Distance |
|---|---|---|---|---|---|
| 1 | Geoff Lees | #7 TOM'S Toyota TS010 #36 TOM'S Toyota TS010 | 40 | 2 | 879.409 km |
| 2 | Jan Lammers | #7 TOM'S Toyota TS010 #36 TOM'S Toyota TS010 | 40 | 2 | 623.913 km |
| 3 | Takashi Yorino | #5 Mazdaspeed Mazda MXR-01 | 27 | 0 | 826.324 km |
| 4 | Yojiro Terada | #5 Mazdaspeed Mazda MXR-01 | 27 | 1 | 613.288 km |
| 5 | Eddie Irvine | #7 TOM'S Toyota TS010 | 15 | 0 | 291.508 km |
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