PORSCHE RACING HISTORY1971 - Can-Am Laguna Seca
17 October 1971 - Laguna Seca Raceway, USA
Jo Siffert 5th in a Porsche 917/10
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/10 | 917/10-002 | Jo Siffert (CH) | STP Porsche Audi | 5th | 7th | 88 laps | ||
| 0 | Porsche 917 PA | 917-028 | Milt Minter (USA) | Vasek Polak Racing | 9th | 14th | 86 laps | ||
| 87 | Porsche 908/02 | 908/02-015 | Steve Matchett (USA) | A. G. Dean | 13th | 21st | 78 laps | ||
| 24 | Porsche 908/02 | 908/02-011 | Dave Jordan (USA) | Vasek Polak Racing | DNF | 20th | 57 laps - Running |
Can-Am - Canadian-American Challenge Cup
Previous 1971 - Paris 1000 km Next 1971 - Grand Prix de la Corniche