| Circuit | Autodromo Enzo e Dino Ferrari |
|---|---|
| Date | 1981-05-03 |
| Round | 4 |
| Pos | Driver | Team | Grid | Laps | Time/Status | Fastest Lap | Pts |
|---|---|---|---|---|---|---|---|
| 1 | Nelson Piquet | Brabham | 5 | 60 | 1:51:23.970 | — | 9 |
| 2 | Riccardo Patrese | Arrows | 9 | 60 | +4.580 | — | 6 |
| 3 | Carlos Reutemann | Williams | 2 | 60 | +6.340 | — | 4 |
| 4 | Hector Rebaque | Brabham | 13 | 60 | +22.890 | — | 3 |
| 5 | Didier Pironi | Ferrari | 6 | 60 | +25.870 | — | 2 |
| 6 | Andrea de Cesaris | McLaren | 14 | 60 | +1:06.610 | — | 1 |
| 7 | Gilles Villeneuve | Ferrari | 1 | 60 | +1:41.970 | — | 0 |
| 8 | René Arnoux | Renault | 3 | 59 | +1 Lap | — | 0 |
| 9 | Marc Surer | Ensign | 21 | 59 | +1 Lap | — | 0 |
| 10 | John Watson | McLaren | 7 | 58 | +2 Laps | — | 0 |
| 11 | Patrick Tambay | Theodore | 16 | 58 | +2 Laps | — | 0 |
| 12 | Alan Jones | Williams | 8 | 58 | +2 Laps | — | 0 |
| 13 | Slim Borgudd | ATS | 24 | 57 | +3 Laps | — | 0 |
| 14 | Jean-Pierre Jabouille | Ligier | 18 | 45 | Not classified | — | 0 |
| 15 | Eliseo Salazar | March | 23 | 38 | Spun off | — | 0 |
| 16 | Michele Alboreto | Tyrrell | 17 | 31 | Collision | — | 0 |
| 17 | Beppe Gabbiani | Osella | 20 | 31 | Collision | — | 0 |
| 18 | Bruno Giacomelli | Alfa Romeo | 11 | 28 | Collision | — | 0 |
| 19 | Eddie Cheever | Tyrrell | 19 | 28 | Collision | — | 0 |
| 20 | Mario Andretti | Alfa Romeo | 12 | 26 | Gearbox | — | 0 |
| 21 | Keke Rosberg | Fittipaldi | 15 | 14 | Engine | — | 0 |
| 22 | Jacques Laffite | Ligier | 10 | 7 | Suspension | — | 0 |
| 23 | Alain Prost | Renault | 4 | 3 | Gearbox | — | 0 |
| 24 | Miguel Ángel Guerra | Osella | 22 | 0 | Accident | — | 0 |
| 27 | Jan Lammers | ATS | 0 | 0 | Retired | — | 0 |
| 31 | Elio de Angelis | Team Lotus | 0 | 0 | Withdrew | — | 0 |
| 32 | Nigel Mansell | Team Lotus | 0 | 0 | Withdrew | — | 0 |