| «1981-14» | Canada Grand Prix - XX Grand Prix du Canada |
| 1981-09-27 | Montréal - Circuit Gilles Villeneuve - 63 laps × 4.41 km : 277.83 km |
| Pos | Grid | Car | Driver | Constructor | Time | Gap | Interval |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 5 | Nelson Piquet | Brabham • Ford Cosworth | 01:29.211 | 177.960 km/h | |
| 2 | 2 | 2 | Carlos Reutemann | Williams • Ford Cosworth | 01:29.359 | +00.148 (+0.166%) | +00.148 |
| 3 | 3 | 1 | Alan Jones | Williams • Ford Cosworth | 01:29.728 | +00.517 (+0.580%) | +00.369 |
| 4 | 4 | 15 | Alain Prost | Renault | 01:29.908 | +00.697 (+0.781%) | +00.180 |
| 5 | 5 | 12 | Nigel Mansell | Lotus • Ford Cosworth | 01:29.997 | +00.786 (+0.881%) | +00.089 |
| 6 | 6 | 6 | Hector Rebaque | Brabham • Ford Cosworth | 01:30.182 | +00.971 (+1.088%) | +00.185 |
| 7 | 7 | 11 | Elio de Angelis | Lotus • Ford Cosworth | 01:30.231 | +01.020 (+1.143%) | +00.049 |
| 8 | 8 | 16 | René Arnoux | Renault | 01:30.232 | +01.021 (+1.144%) | +00.001 |
| 9 | 9 | 7 | John Watson | McLaren • Ford Cosworth | 01:30.566 | +01.355 (+1.519%) | +00.334 |
| 10 | 10 | 26 | Jacques Laffite | Ligier • Matra | 01:30.705 | +01.494 (+1.675%) | +00.139 |
| 11 | 11 | 27 | Gilles Villeneuve | Ferrari | 01:31.115 | +01.904 (+2.134%) | +00.410 |
| 12 | 12 | 28 | Didier Pironi | Ferrari | 01:31.350 | +02.139 (+2.398%) | +00.235 |
| 13 | 13 | 8 | Andrea de Cesaris | McLaren • Ford Cosworth | 01:31.507 | +02.296 (+2.574%) | +00.157 |
| 14 | 14 | 3 | Eddie Cheever | Tyrrell • Ford Cosworth | 01:31.547 | +02.336 (+2.619%) | +00.040 |
| 15 | 15 | 23 | Bruno Giacomelli | Alfa Romeo | 01:31.600 | +02.389 (+2.678%) | +00.053 |
| 16 | 16 | 22 | Mario Andretti | Alfa Romeo | 01:31.740 | +02.529 (+2.835%) | +00.140 |
| 17 | 17 | 25 | Patrick Tambay | Ligier • Matra | 01:31.747 | +02.536 (+2.843%) | +00.007 |
| 18 | 18 | 29 | Riccardo Patrese | Arrows • Ford Cosworth | 01:31.969 | +02.758 (+3.092%) | +00.222 |
| 19 | 19 | 33 | Marc Surer | Theodore • Ford Cosworth | 01:32.253 | +03.042 (+3.410%) | +00.284 |
| 20 | 20 | 17 | Derek Daly | March • Ford Cosworth | 01:32.305 | +03.094 (+3.468%) | +00.052 |
| 21 | 21 | 9 | Slim Borgudd | ATS • Ford Cosworth | 01:32.652 | +03.441 (+3.857%) | +00.347 |
| 22 | 22 | 4 | Michele Alboreto | Tyrrell • Ford Cosworth | 01:32.709 | +03.498 (+3.921%) | +00.057 |
| 23 | 23 | 32 | Jean-Pierre Jarier | Osella • Ford Cosworth | 01:33.432 | +04.221 (+4.731%) | +00.723 |
| 24 | 24 | 14 | Eliseo Salazar | Ensign • Ford Cosworth | 01:33.848 | +04.637 (+5.198%) | +00.416 |
| 25 | 20 | Keke Rosberg | Fittipaldi • Ford Cosworth | 01:34.310 | +05.099 (+5.716%) | +00.462 | |
| 26 | 21 | Chico Serra | Fittipaldi • Ford Cosworth | 01:36.546 | +07.335 (+8.222%) | +02.236 | |
| 27 | 35 | Brian Henton | Toleman • Hart | 01:36.648 | +07.437 (+8.336%) | +00.102 | |
| 28 | 30 | Jacques Sr Villeneuve | Arrows • Ford Cosworth | 01:36.720 | +07.509 (+8.417%) | +00.072 | |
| 29 | 36 | Derek Warwick | Toleman • Hart | 01:36.999 | +07.788 (+8.730%) | +00.279 | |
| 30 | 31 | Beppe Gabbiani | Osella • Ford Cosworth | 01:37.493 | +08.282 (+9.284%) | +00.494 |