| 1978 | 90 | Porsche 935/77A Turbo | Porsche 930/78 2992 F6 Bi-turbo | IMSA | Goodyear | 5. | 1. | classified | 338 | Brian Redman / Dick Barbour / John Paul Sr |
| 1978 | 91 | Porsche 935/77A Turbo | Porsche 930/78 2992 F6 Bi-turbo | IMSA | Goodyear | — | — | retired | 4 | Bob Garretson / Steven Earle / Bob Akin |
| 1979 | 70 | Porsche 935/77A | Porsche 2994 F6 Turbo | IMSA | Goodyear | 2. | 1. | classified | 299 | Rolf Stommelen / Paul Newman / Dick Barbour |
| 1979 | 71 | Porsche 935 | Porsche 930/78 2994 F6 Turbo | IMSA | Goodyear | — | — | retired | 4 | Bob Akin / Roy Woods / Rob McFarlin |
| 1979 | 72 | Porsche 935/78 | Porsche 2994 F6 Turbo | IMSA | Goodyear | 8. | 3. | classified | 278 | Edwin Abate / Bob Garretson / Skeeter McKitterick |
| 1980 | 70 | Porsche 935 K3 | Porsche 3164 F6 Turbo | IMSA | Goodyear | 5. | 1. | classified | 318 | John Fitzpatrick / Brian Redman / Dick Barbour |
| 1980 | 70R | Porsche 935 K3 | Porsche 3164 F6 Turbo | IMSA | Goodyear | — | — | — | 0 | — |
| 1980 | 71 | Porsche 935 K3 | Porsche 2994 F6 Turbo | IMSA | Goodyear | — | — | retired | 3 | Bobby Rahal / Bob Garretson / Allan Moffat |
| 2000 | 83 | Porsche 911 GT3-R | Porsche M96/77 3598 F6 | LM GT | Michelin | — | 7. | — | 319 | Dirk Müller / Lucas Luhr / Bob Wollek |
| 2001 | 36 | Reynard 01Q-LM | Judd KV8 3397 V8 à 90° | LM P675 | Goodyear | — | — | retired | 95 | Didier de Radigues / Sascha Maassen / Hideshi Matsuda |
| 2001 | 37 | Reynard 01Q-LM | Judd KV8 3397 V8 à 90° | LM P675 | Goodyear | — | — | retired | 4 | John Graham / Milka Duno / David Murry |
Dick Barbour Racing