1981 Grand Prix of Canada
27 September - Montréal: 277.830km (4.410km x 70 laps)


Stopped after 2 hours on lap 63 (277.830 km)



Pole Position: Nelson Piquet, Brabham-Ford BT49C, 1:29.211


Results
 1. Jacques Laffite           Ligier-Matra JS17        2:01:25.205 (137.290 km/h)
 2. John Watson               McLaren-Ford MP4        -      6.233
 3. Gilles Villeneuve         Ferrari 126CK           -   1:50.275
 4. Bruno Giacomelli          Alfa Romeo 179C         -  1 lap
 5. Nelson Piquet             Brabham-Ford BT49C      -  1 lap
 6. Elio de Angelis           Lotus-Ford 87           -  1 lap
 7. Mario Andretti            Alfa Romeo 179D         -  1 lap
 8. Derek Daly                March-Ford 811          -  2 laps
 9. Marc Surer                Theodore-Ford TY01      -  2 laps
10. Carlos Reutemann          Williams-Ford FW07C     -  3 laps
11. Michele Alboreto          Tyrrell-Ford 011        -  4 laps
12. Eddie Cheever             Tyrrell-Ford 011        -  7 laps (Engine)
    
Fastest lap: John Watson, 1:49.475 (145.019 km/h on lap 43)
    

Retirements    
    Andrea de Cesaris         McLaren-Ford MP4        - 12 laps (Spun)
    Alain Prost               Renault RE30            - 15 laps (Accident)
    Nigel Mansell             Lotus-Ford 87           - 18 laps (Accident)
    Slim Borgudd              ATS-Ford HGS1           - 23 laps (Spun)
    Hector Rebaque            Brabham-Ford BT49C      - 28 laps (Spun)
    Jean-Pierre Jarier        Osella-Ford FA1C        - 37 laps (Accident)
    Didier Pironi             Ferrari 126CK           - 39 laps (Ignition)
    Alan Jones                Williams-Ford FW07C     - 39 laps (Handling)
    Eliseo Salazar            Ensign-Ford N180B       - 55 laps (Spun)
    Riccardo Patrese          Arrows-Ford A3          - 57 laps (Spun)
    Patrick Tambay            Ligier-Matra JS17       - 57 laps (Spun)
    René Arnoux               Renault RE30            - 63 laps (Accident)
    
Did Not Qualify    
    Keke Rosberg              Fittipaldi-Ford F8C
    Chico Serra               Fittipaldi-Ford F8C
    Brian Henton              Toleman-Hart TG181
    Jacques Villeneuve        Arrows-Ford A3
    Derek Warwick             Toleman-Hart TG181
    Beppe Gabbiani            Osella-Ford FA1B


    Race leaders:
    Alan Jones                 1- 6  (6 laps =  26.460 km)
    Alain Prost                7-12  (6 laps =  26.460 km)
    Jacques Laffite           13-63 (51 laps = 224.910 km)
-----------------------------------------------------------------------------

                                Starting Grid

 1. Nelson Piquet             Brabham-Ford BT49C       1:29.211 (177.960 km/h)
 2. Carlos Reutemann          Williams-Ford FW07C     -   0.148
 3. Alan Jones                Williams-Ford FW07C     -   0.517
 4. Alain Prost               Renault RE30            -   0.697
 5. Nigel Mansell             Lotus-Ford 87           -   0.786
 6. Hector Rebaque            Brabham-Ford BT49C      -   0.971
 7. Elio de Angelis           Lotus-Ford 87           -   1.020
 8. René Arnoux               Renault RE30            -   1.021
 9. John Watson               McLaren-Ford MP4        -   1.355
10. Jacques Laffite           Ligier-Matra JS17       -   1.494
11. Gilles Villeneuve         Ferrari 126CK           -   1.904
12. Didier Pironi             Ferrari 126CK           -   2.139
13. Andrea de Cesaris         McLaren-Ford MP4        -   2.296
14. Eddie Cheever             Tyrrell-Ford 011        -   2.336
15. Bruno Giacomelli          Alfa Romeo 179C         -   2.389
16. Mario Andretti            Alfa Romeo 179D         -   2.529
17. Patrick Tambay            Ligier-Matra JS17       -   2.536
18. Riccardo Patrese          Arrows-Ford A3          -   2.758
19. Marc Surer                Theodore-Ford TY01      -   3.042
20. Derek Daly                March-Ford 811          -   3.094
21. Slim Borgudd              ATS-Ford HGS1           -   3.441
22. Michele Alboreto          Tyrrell-Ford 011        -   3.498
23. Jean-Pierre Jarier        Osella-Ford FA1C        -   4.221
24. Eliseo Salazar            Ensign-Ford N180B       -   4.637
    
Did Not Qualify    
25. Keke Rosberg              Fittipaldi-Ford F8C     -   5.099
26. Chico Serra               Fittipaldi-Ford F8C     -   7.329
27. Brian Henton              Toleman-Hart TG181      -   7.429
28. Jacques Villeneuve        Arrows-Ford A3          -   7.509
29. Derek Warwick             Toleman-Hart TG181      -   7.779
30. Beppe Gabbiani            Osella-Ford FA1B        -   8.279