Race Result
| GP n. 355 - 13/09/1981 - Grand Prix of Italy Autodromo Nationale di Monza |
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| Winner: | Alain Prost / Renault - 1:26'36.897 | ||||||
| Pole Position: | Rene Arnoux / Renault - 1:33.457 | ||||||
| Fastest Lap: | Carlos Reutemann / Williams-Ford - 1:37.528 | ||||||
| Pos | Nš | Driver | Constructor | Laps | Time/Retired | Grid | Points |
| 1 | 15 |  Alain Prost |
Renault | 52 | 1:26'36.897 | 3 | 9 |
| 2 | 1 |  Alan Jones |
Williams-Ford | 52 | +22.175 | 5 | 6 |
| 3 | 2 |  Carlos Reutemann |
Williams-Ford | 52 | +50.587 | 2 | 4 |
| 4 | 11 |  Elio de Angelis |
Lotus-Ford | 52 | + 1'32.902 | 11 | 3 |
| 5 | 28 | Didier Pironi |
Ferrari | 52 | + 1'34.522 | 8 | 2 |
| 6 | 5 |  Nelson Piquet |
Brabham-Ford | 51 | engine | 6 | 1 |
| 7 | 8 | Andrea de Cesaris |
McLaren-Ford | 51 | puncture | 16 | 0 |
| 8 | 23 | Bruno Giacomelli |
Alfa Romeo | 50 | + 2 laps | 10 | 0 |
| 9 | 32 | Jean Pierre Jarier |
Osella-Ford | 50 | + 2 laps | 18 | 0 |
| 10 | 35 |  Brian Henton |
Toleman-Hart | 49 | + 3 laps | 23 | 0 |
| Ret | 22 |  Mario Andretti |
Alfa Romeo | 40 | engine | 13 | 0 |
| Ret | 17 |  Derek Daly |
March-Ford | 36 | gear box | 19 | 0 |
| Ret | 25 | Patrick Tambay |
Ligier-Matra | 22 | puncture | 15 | 0 |
| Ret | 12 | Nigel Mansell |
Lotus-Ford | 21 | suspension | 12 | 0 |
| Ret | 7 | John Watson |
McLaren-Ford | 19 | accident | 7 | 0 |
| Ret | 29 | Riccardo Patrese |
Arrows-Ford | 18 | gear box | 20 | 0 |
| Ret | 4 | Michele Alboreto |
Tyrrell-Ford | 17 | accident | 22 | 0 |
| Ret | 14 |  Eliseo Salazar |
Ensign-Ford | 13 | spun off | 24 | 0 |
| Ret | 16 | Rene Arnoux |
Renault | 12 | spun off | 1 | 0 |
| Ret | 26 | Jacques Laffite |
Ligier-Matra | 11 | puncture | 4 | 0 |
| Ret | 3 | Eddie Cheever |
Tyrrell-Ford | 11 | spun off | 17 | 0 |
| Ret | 9 |  Slim Borgudd |
ATS-Ford | 10 | spun off | 21 | 0 |
| Ret | 27 |  Gilles Villeneuve |
Ferrari | 5 | engine | 9 | 0 |
| Ret | 6 |  Hector Rebaque |
Brabham-Ford | 1 | electrical | 14 | 0 |
| Dnq | 30 | Siegfried Stohr |
Arrows-Ford | did not qualify | 0 | ||
| Dnq | 20 |  Keke Rosberg |
Fittipaldi-Ford | did not qualify | 0 | ||
| Dnq | 21 | Chico Serra |
Fittipaldi-Ford | did not qualify | 0 | ||
| Dnq | 31 | Beppe Gabbiani |
Osella-Ford | did not qualify | 0 | ||
| Dnq | 33 |  Marc Surer |
Theodore-Ford | did not qualify | 0 | ||
| Dnq | 36 | Derek Warwick |
Toleman-Hart | did not qualify | 0 | ||