| Brazil | 26 Mar | Nigel MansellMAN | Ferrari | 61 | 1:38:58.744 |
| San Marino | 23 Apr | Ayrton SennaSEN | McLaren Honda | 58 | 1:26:51.245 |
| Monaco | 07 May | Ayrton SennaSEN | McLaren Honda | 77 | 1:53:33.251 |
| Mexico | 28 May | Ayrton SennaSEN | McLaren Honda | 69 | 1:35:21.431 |
| United States | 04 Jun | Alain ProstPRO | McLaren Honda | 75 | 2:01:33.133 |
| Canada | 18 Jun | Thierry BoutsenBOU | Williams Renault | 69 | 2:01:24.073 |
| France | 09 Jul | Alain ProstPRO | McLaren Honda | 80 | 1:38:29.411 |
| Great Britain | 16 Jul | Alain ProstPRO | McLaren Honda | 64 | 1:19:22.131 |
| Germany | 30 Jul | Ayrton SennaSEN | McLaren Honda | 45 | 1:21:43.302 |
| Hungary | 13 Aug | Nigel MansellMAN | Ferrari | 77 | 1:49:38.650 |
| Belgium | 27 Aug | Ayrton SennaSEN | McLaren Honda | 44 | 1:40:54.196 |
| Italy | 10 Sep | Alain ProstPRO | McLaren Honda | 53 | 1:19:27.550 |
| Portugal | 24 Sep | Gerhard BergerBER | Ferrari | 71 | 1:36:48.546 |
| Spain | 01 Oct | Ayrton SennaSEN | McLaren Honda | 72 | 1:47:48.264 |
| Japan | 22 Oct | Alessandro NanniniNAN | Benetton Ford | 53 | 1:35:06.277 |
| Australia | 05 Nov | Thierry BoutsenBOU | Williams Renault | 70 | 2:00:17.421 |