1992 All Japan Sports Prototype Car Endurance Championship
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.
Schedule
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 |
Entry list
- – 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.
Season results
Overall winner in bold. Season results as follows:| Round | Circuit | C1 Winning Team | C Winning Team |
| Round | Circuit | C1 Winning Drivers | C Winning Drivers |
| 1 | Suzuka Circuit | #24 Nissan Motorsports Nissan R92CP | Did Not Participate |
| 1 | Suzuka Circuit | ''' |