PORSCHE RACING HISTORYHarald Grohs (D)
1987
30 August 1987 - Nürburgring 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 31 | Porsche 962 C | 962C-112 | C1 | Jochen Dauer (D)/Harald Grohs (D) | Victor-Dauer Racing (D) | 8th | 8th | 8th | 207 laps |
27 September 1987 - Fuji 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 962 C | 962C-129 | C1 | Bob Wollek (F)/Harald Grohs (D)/Frank Jelinski (D) | Joest Racing (D) | DNF | 11th | 81 laps - Engine |
28 November 1987 - Kylami 500 km - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 962 C | 962C-110 | C1 | Wayne Taylor (ZA)/Harald Grohs (D) | Kremer Racing (D) | DNF | 6th | 59 laps - Misfire |