PORSCHE RACING HISTORYTiff Needell (GB)
1990
11 March 1990 - Fuji 500 km - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-154 | C1 | Tiff Needell (GB)/Costas Los (GR) | The Alpha Racing (J) | 10th | 9th | 12th | 107 laps |
22 July 1990 - Fuji 500 Miles - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-154 | C1 | Tiff Needell (GB)/Derek Bell (GB) | The Alpha Racing (J) | 5th | 5th | 11th | 174 laps |
26 August 1990 - Suzuka 1000 km - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-154 | C1 | Tiff Needell (GB)/Derek Bell (GB)/Anthony Reid (GB) | The Alpha Racing (J) | 8th | 8th | 10th | 168 laps |
16 September 1990 - Sugo 500 km - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-154 | C1 | Tiff Needell (GB)/Derek Bell (GB) | The Alpha Racing (J) | DNF | 12th | 1 lap - Engine |
7 October 1990 - Fuji 1000 km - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-154 | C1 | Tiff Needell (GB)/Derek Bell (GB)/Anthony Reid (GB) | The Alpha Racing (J) | DNF | 9th | 167 laps - Suspension |