Race Result
| GP n. 207 - 19/09/1971 - Grand Prix of Canada Mosport Park |
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| Winner: | Jackie Stewart / Tyrrell-Ford - 1:55'12.9 | ||||||
| Pole Position: | Jackie Stewart / Tyrrell-Ford - 1:15.3 | ||||||
| Fastest Lap: | Denny Hulme / McLaren-Ford - 1:43.5 | ||||||
| Pos | Nš | Driver | Constructor | Laps | Time/Retired | Grid | Points |
| 1 | 11 |  Jackie Stewart |
Tyrrell-Ford | 64 | 1:55'12.9 | 1 | 9 |
| 2 | 17 |  Ronnie Peterson |
March-Ford | 64 | + 38.3 | 6 | 6 |
| 3 | 10 |  Mark Donohue |
McLaren-Ford | 64 | + 1'35.8 | 8 | 4 |
| 4 | 9 |  Denny Hulme |
McLaren-Ford | 63 | + 1 lap | 10 | 3 |
| 5 | 3 | Reine Wisell |
Lotus-Ford | 63 | + 1 lap | 7 | 2 |
| 6 | 12 |  Francois Cevert |
Tyrrell-Ford | 62 | + 2 laps | 3 | 1 |
| 7 | 2 |  Emerson Fittipaldi |
Lotus-Ford | 62 | + 2 laps | 4 | 0 |
| 8 | 4 |  Jacky Ickx |
Ferrari | 62 | + 2 laps | 12 | 0 |
| 9 | 14 |  Jo Siffert |
BRM | 61 | + 3 laps | 2 | 0 |
| 10 | 20 | Chris Amon |
Matra | 61 | + 3 laps | 5 | 0 |
| 11 | 22 | John Surtees |
Surtees-Ford | 60 | + 4 laps | 14 | 0 |
| 12 | 31 |  Helmut Marko |
BRM | 60 | + 4 laps | 19 | 0 |
| 13 | 6 | Mario Andretti |
Ferrari | 60 | + 4 laps | 13 | 0 |
| 14 | 15 | Peter Gethin |
BRM | 59 | + 5 laps | 16 | 0 |
| 15 | 28 |  George Eaton |
BRM | 59 | + 5 laps | 21 | 0 |
| 16 | 18 |  Nanni Galli |
March-Ford | 57 | + 7 laps | 20 | 0 |
| Nc | 19 | Mike Beuttler |
March-Ford | 56 | not classified | 22 | 0 |
| Nc | 35 | Pete Lovely |
Lotus-Ford | 55 | not classified | 25 | 0 |
| Ret | 24 |  Rolf Stommelen |
Surtees-Ford | 26 | overheating | 23 | 0 |
| Ret | 21 | Jean Pierre Beltoise |
Matra | 15 | accident | 11 | 0 |
| Ret | 33 | Skip Barber |
March-Ford | 13 | oil pressure | 24 | 0 |
| Ret | 5 | Clay Regazzoni |
Ferrari | 7 | accident | 18 | 0 |
| Ret | 37 | Graham Hill |
Brabham-Ford | 2 | accident | 15 | 0 |
| Ret | 8 |  Tim Schenken |
Brabham-Ford | 1 | ignition | 17 | 0 |
| Dnq | 26 | Chris Craft |
Brabham-Ford | did not qualify | 0 | ||
| Dns | 16 | Howden Ganley |
BRM | 0 | accident | 9 | 0 |