PORSCHE RACING HISTORY1971 - Can-Am Edmonton
26 September 1971 - Edmonton International Speedway, Canada
Jo Siffert 4th 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 | 4th | 7th | 78 laps | ||
| 0 | Porsche 917 PA | 917-028 | Milt Minter (USA) | Vasek Polak Racing | 5th | 11th | 77 laps | ||
| 87 | Porsche 908/02 | 908/02-015 | Steve Matchett (USA) | A. G. Dean | 11th | 18th | 68 laps |
Can-Am - Canadian-American Challenge Cup
Previous 1971 - Can-Am Donnybrooke Next 1971 - Coupes du Salon