PORSCHE RACING HISTORY"John Winter" Louis Krages (D)
1988 : Sebring 12 Hours - 2nd overall : Fuji 1000 km - 3rd overall
6 March 1988 - Jerez 800 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 962 C | 962C-116 | C1 | Frank Jelinski (D)/"John Winter" Louis Krages (D) | Joest Racing (D) | 5th | 5th | 8th | 183 laps |
19 March 1988 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 0 | Porsche 962 | 962C-116 | GTP | "John Winter" Louis Krages (D)/Frank Jelinski (D)/Paolo Barilla (I) | Joest Racing (D) | 2nd | 2nd | 9th | 309 laps |
9 October 1988 - Fuji 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 962 C | 962C-129 | C1 | Frank Jelinski (D)/"John Winter" Louis Krages (D) | Joest Racing (D) | 3rd | 3rd | 9th | 221 laps |