Autódromo Internacional Nelson Piquet · 29 March 1981
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | Williams Reutemann 9 + Jones 6 | Reutemann 9 + Jones 6 | 15 | |
| 2 | Arrows Patrese 4 + Stohr 0 | Patrese 4 + Stohr 0 | 4 | |
| 3 | Ensign Surer 3 + Londoño 0 | Surer 3 + Londoño 0 | 3 | |
| 4 | Team Lotus Angelis 2 + Mansell 0 | Angelis 2 + Mansell 0 | 2 | |
| 5 | Ligier Laffite 1 + Jarier 0 | Laffite 1 + Jarier 0 | 1 | |
| 6 | McLaren Watson 0 + Cesaris 0 | Watson 0 + Cesaris 0 | 0 | |
| 7 | Fittipaldi Rosberg 0 + Serra 0 | Rosberg 0 + Serra 0 | 0 | |
| 8 | Theodore Tambay 0 | Tambay 0 | 0 | |
| 9 | Brabham Piquet 0 + Rebaque 0 | Piquet 0 + Rebaque 0 | 0 | |
| 10 | Tyrrell Zunino 0 + Cheever 0 | Zunino 0 + Cheever 0 | 0 | |
| 11 | Alfa Romeo Giacomelli 0 + Andretti 0 | Giacomelli 0 + Andretti 0 | 0 | |
| 12 | Ferrari Villeneuve 0 + Pironi 0 | Villeneuve 0 + Pironi 0 | 0 | |
| 13 | Renault Prost 0 + Arnoux 0 | Prost 0 + Arnoux 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Carlos Reutemann Williams | Williams | 2:00:23.660 | 62 | — | 9 | |
| 2 | Alan Jones Williams | Williams | +4.440s | 62 | — | 6 | |
| 3 | Riccardo Patrese Arrows | Arrows | +1:03.080 | 62 | — | 4 | |
| 4 | Marc Surer Ensign | Ensign | +1:17.030 | 62 | — | 3 | |
| 5 | Elio de Angelis Team Lotus | Team Lotus | +1:26.420 | 62 | — | 2 | |
| 6 | Jacques Laffite Ligier | Ligier | +1:26.830 | 62 | — | 1 | |
| 7 | Jean-Pierre Jarier Ligier | Ligier | +1:30.250 | 62 | — | — | |
| 8 | John Watson McLaren | McLaren | — | 61 | — | — | |
| 9 | Keke Rosberg Fittipaldi | Fittipaldi | — | 61 | — | — | |
| 10 | Patrick Tambay Theodore | Theodore | — | 61 | — | — | |
| 11 | Nigel Mansell Team Lotus | Team Lotus | — | 61 | — | — | |
| 12 | Nelson Piquet Brabham | Brabham | — | 60 | — | — | |
| 13 | Ricardo Zunino Tyrrell | Tyrrell | — | 57 | — | — | |
| 14 | Eddie Cheever Tyrrell | Tyrrell | — | 49 | — | — | |
| 15 | Bruno Giacomelli Alfa Romeo | Alfa Romeo | — | 40 | — | — | |
| 16 | Gilles Villeneuve Ferrari | Ferrari | — | 25 | — | — | |
| 17 | Hector Rebaque Brabham | Brabham | — | 22 | — | — | |
| 18 | Alain Prost Renault | Renault | — | 20 | — | — | |
| 19 | Siegfried Stohr Arrows | Arrows | — | 20 | — | — | |
| 20 | Didier Pironi Ferrari | Ferrari | — | 19 | — | — | |
| 21 | Andrea de Cesaris McLaren | McLaren | — | 9 | — | — | |
| 22 | René Arnoux Renault | Renault | — | 0 | — | — | |
| 23 | Mario Andretti Alfa Romeo | Alfa Romeo | — | 0 | — | — | |
| 24 | Chico Serra Fittipaldi | Fittipaldi | — | 0 | — | — | |
| 30 | Ricardo Londoño Ensign | Ensign | — | 0 | — | — |