McLaren
Ayrton Senna finished P1 in the 1991 World Drivers' Championship with 96 points. Across 16 races: 7 wins, 12 podiums and 8 pole positions, with a best finish of P1.
| Round | Race | Team | Grid | Finish | Points | Status |
|---|---|---|---|---|---|---|
| 1 | United States Grand Prix | McLaren | 1 | P1 | 10 | Finished |
| 2 | Brazilian Grand Prix | McLaren | 1 | P1 | 10 | Finished |
| 3 | San Marino Grand Prix | McLaren | 1 | P1 | 10 | Finished |
| 4 | Monaco Grand Prix | McLaren | 1 | P1 | 10 | Finished |
| 5 | Canadian Grand Prix | McLaren | 3 |
| P19 |
| Alternator |
| 6 | Mexican Grand Prix | McLaren | 3 | P3 | 4 | Finished |
| 7 | French Grand Prix | McLaren | 3 | P3 | 4 | Finished |
| 8 | British Grand Prix | McLaren | 2 | P4 | 3 | Out of fuel |
| 9 | German Grand Prix | McLaren | 2 | P7 | Out of fuel |
| 10 | Hungarian Grand Prix | McLaren | 1 | P1 | 10 | Finished |
| 11 | Belgian Grand Prix | McLaren | 1 | P1 | 10 | Finished |
| 12 | Italian Grand Prix | McLaren | 1 | P2 | 6 | Finished |
| 13 | Portuguese Grand Prix | McLaren | 3 | P2 | 6 | Finished |
| 14 | Spanish Grand Prix | McLaren | 3 | P5 | 2 | Finished |
| 15 | Japanese Grand Prix | McLaren | 2 | P2 | 6 | Finished |
| 16 | Australian Grand Prix | McLaren | 1 | P1 | 5 | Finished |