Saison 1981 : Grand Prix de F1 sur le circuit de Saint Marin, le 3 mai.
| Pos | Pilotes | Ecuries
| Tours
| Ecart
| Points |
| 01 | N. Piquet | Brabham | 60 | 1:51’23.97 | 9 |
| 02 | R. Patrese | Arrows | 60 | + 4.58 | 6 |
| 03 | C. Reutemann | Williams | 60 | + 6.34 | 4 |
| 04 | H. Rebaque | Brabham | 60 | + 22.89 | 3 |
| 05 | D. Pironi | Ferrari | 60 | + 25.87 | 2 |
| 06 | A. de Cesaris | McLaren | 60 | + 1’06.61 | 1 |
| 07 | G. Villeneuve | Ferrari | 60 | + 1’41.97 | |
| 08 | R. Arnoux | Renault | 59 | + 1 Lap | |
| 09 | M. Surer | Ensign | 59 | + 1 Lap | |
| 10 | J. Watson | McLaren | 58 | + 2 Laps | |
| 11 | P. Tambay | Theodore | 58 | + 2 Laps | |
| 12 | A. Jones | Williams | 58 | + 2 Laps | |
| 13 | S. Borgudd | ATS | 57 | + 3 Laps | |
| NC | J. Pierre Jabouille | Ligier | 45 | Not Classified | |
| Ret | E. Salazar | March | 38 | Spun Off | |
| Ret | M. Alboreto | Tyrrell | 31 | Collision | |
| Ret | B. Gabbiani | Osella | 31 | Collision | |
| Ret | B. Giacomelli | Alfa Romeo | 28 | Collision | |
| Ret | E. Cheever | Tyrrell | 28 | Collision | |
| Ret | M. Andretti | Alfa Romeo | 26 | Gear Box | |
| Ret | K. Rosberg | Fittipaldi | 14 | Engine | |
| Ret | J. Laffite | Ligier | 7 | Suspension | |
| Ret | A. Prost | Renault | 3 | Gear Box | |
| Ret | M. Angel Guerra | Osella | 0 | Accident | |
| DNQ | S. Stohr | Arrows | | | |
| DNQ | D. Daly | March | | | |
| Ret | J. Lammers | ATS | | | |
| DNQ | C. Serra | Fittipaldi | | | |
| DNQ | D. Warwick | Toleman | | | |
| DNQ | B. Henton | Toleman | | | |
