| Circuit | Autódromo Juan y Oscar Gálvez |
|---|---|
| Date | 1981-04-12 |
| Round | 3 |
| Pos | Driver | Team | Grid | Laps | Time/Status | Fastest Lap | Pts |
|---|---|---|---|---|---|---|---|
| 1 | Nelson Piquet | Brabham | 1 | 53 | 1:34:32.740 | — | 9 |
| 2 | Carlos Reutemann | Williams | 4 | 53 | +26.610 | — | 6 |
| 3 | Alain Prost | Renault | 2 | 53 | +49.980 | — | 4 |
| 4 | Alan Jones | Williams | 3 | 53 | +1:07.880 | — | 3 |
| 5 | René Arnoux | Renault | 5 | 53 | +1:31.850 | — | 2 |
| 6 | Elio de Angelis | Team Lotus | 10 | 52 | +1 Lap | — | 1 |
| 7 | Riccardo Patrese | Arrows | 9 | 52 | +1 Lap | — | 0 |
| 8 | Mario Andretti | Alfa Romeo | 17 | 52 | +1 Lap | — | 0 |
| 9 | Siegfried Stohr | Arrows | 19 | 52 | +1 Lap | — | 0 |
| 10 | Bruno Giacomelli | Alfa Romeo | 22 | 51 | Out of fuel | — | 0 |
| 11 | Andrea de Cesaris | McLaren | 18 | 51 | +2 Laps | — | 0 |
| 12 | Jan Lammers | ATS | 23 | 51 | +2 Laps | — | 0 |
| 13 | Ricardo Zunino | Tyrrell | 24 | 51 | +2 Laps | — | 0 |
| 14 | Gilles Villeneuve | Ferrari | 7 | 40 | Transmission | — | 0 |
| 15 | Patrick Tambay | Theodore | 14 | 36 | Oil leak | — | 0 |
| 16 | John Watson | McLaren | 11 | 36 | Transmission | — | 0 |
| 17 | Hector Rebaque | Brabham | 6 | 32 | Electrical | — | 0 |
| 18 | Chico Serra | Fittipaldi | 20 | 28 | Gearbox | — | 0 |
| 19 | Jacques Laffite | Ligier | 21 | 19 | Handling | — | 0 |
| 20 | Marc Surer | Ensign | 16 | 14 | Engine | — | 0 |
| 21 | Keke Rosberg | Fittipaldi | 8 | 4 | Fuel system | — | 0 |
| 22 | Nigel Mansell | Team Lotus | 15 | 3 | Engine | — | 0 |
| 23 | Didier Pironi | Ferrari | 12 | 3 | Engine | — | 0 |
| 24 | Eddie Cheever | Tyrrell | 13 | 1 | Clutch | — | 0 |