F1 pole positions
Polesitters
| No. | Grand Prix | Circuit | Driver | Constructor | Race | Pole margin |
|---|---|---|---|---|---|---|
| 1 |  Brazil | Jacarepagua | Ayrton Senna |  McLaren-Honda | DSQ | 0.536s |
| 2 |  San Marino | Imola | Ayrton Senna | McLaren-Honda | 1 | 0.771s |
| 3 |  Monaco | Monte Carlo | Ayrton Senna | McLaren-Honda | DNF | 1.427s |
| 4 |  Mexico | Mexico City | Ayrton Senna | McLaren-Honda | 2 | 0.629s |
| 5 |  Canada | Montreal | Ayrton Senna | McLaren-Honda | 1 | 0.182s |
| 6 |  Detroit | Detroit | Ayrton Senna | McLaren-Honda | 1 | 0.858s |
| 7 |  France | Le Castellet | Alain Prost | McLaren-Honda | 1 | 0.478s |
| 8 | Britain | Silverstone |  Gerhard Berger |  Ferrari | 9 | 0.199s |
| 9 |  Germany | Hockenheim | Ayrton Senna | McLaren-Honda | 1 | 0.277s |
| 10 |  Hungary | Hungaroring | Ayrton Senna | McLaren-Honda | 1 | 0.108s |
| 11 |  Belgium | Spa-Francorchamps | Ayrton Senna | McLaren-Honda | 1 | 0.410s |
| 12 | Italy | Monza | Ayrton Senna | McLaren-Honda | 10R | 0.303s |
| 13 |  Portugal | Estoril | Alain Prost | McLaren-Honda | 1 | 0.458s |
| 14 |  Spain | Jerez | Ayrton Senna | McLaren-Honda | 4 | 0.067s |
| 15 |  Japan | Suzuka | Ayrton Senna | McLaren-Honda | 1 | 0.324s |
| 16 |  Australia | Adelaide | Ayrton Senna | McLaren-Honda | 2 | 0.132s |