PORSCHE RACING HISTORYKeiji Matsumoto (J)
1989 : Fuji 500 km - 2nd overall : Fuji 1000 km JSPC - 1st overall
12 March 1989 - Fuji 500 km - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 962 C | 962C-008 | C1 | Vern Schuppan (AUS)/Eje Elgh (S)/Keiji Matsumoto (J) | Omron Racing Team (AUS) | 2nd | 2nd | 4th | 112 laps |
30 April 1989 - Fuji 1000 km JSPC - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 962 C | 962C-008 | C1 | Vern Schuppan (AUS)/Eje Elgh (S)/Keiji Matsumoto (J) | Omron Racing Team (AUS) | 1st | 1st | 5th | 224 laps |
23 July 1989 - Fuji 500 Miles - All Japan Sports Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 962 C | 962C-008 | C1 | Vern Schuppan (AUS)/Eje Elgh (S)/Keiji Matsumoto (J) | Omron Racing Team (AUS) | DNF | 9th | 1 lap - Clutch |