SAN MARINO GRAND PRIX - FASTEST LAPS
28 Apr 1991
Autodromo Internazionale Enzo e Dino Ferrari, San Marino
| Pos. | No. | Driver | Team | Lap | Time | 
|---|---|---|---|---|---|
| 1 | 2 | Gerhard BergerBER | McLaren Honda | 55 | 1:26.531 | 
| 2 | 1 | Ayrton SennaSEN | McLaren Honda | 47 | 1:27.168 | 
| 3 | 19 | Roberto MorenoMOR | Benetton Ford | 44 | 1:28.423 | 
| 4 | 6 | Riccardo PatresePAT | Williams Renault | 16 | 1:28.776 | 
| 5 | 4 | Stefano ModenaMOD | Tyrrell Honda | 40 | 1:28.906 | 
| 6 | 22 | Jyrki JarvilehtoJAR | Dallara Judd | 40 | 1:29.091 | 
| 7 | 25 | Thierry BoutsenBOU | Ligier Lamborghini | 48 | 1:29.368 | 
| 8 | 12 | Julian BaileyBAI | Lotus Judd | 58 | 1:29.968 | 
| 9 | 7 | Martin BrundleBRU | Brabham Yamaha | 50 | 1:30.115 | 
| 10 | 15 | Mauricio GugelminGUG | Leyton House Ilmor | 46 | 1:30.422 | 
| 11 | 33 | Andrea de CesarisDEC | Jordan Ford | 28 | 1:30.471 | 
| 12 | 23 | Pierluigi MartiniMAR | Minardi Ferrari | 33 | 1:30.476 | 
| 13 | 11 | Mika HakkinenHAK | Lotus Judd | 56 | 1:30.481 | 
| 14 | 35 | Eric van de PoeleVAN | Lambo Lamborghini | 50 | 1:30.528 | 
| 15 | 16 | Ivan CapelliCAP | Leyton House Ilmor | 24 | 1:31.257 | 
| 16 | 8 | Mark BlundellBLU | Brabham Yamaha | 53 | 1:31.442 | 
| 17 | 26 | Erik ComasCOM | Ligier Lamborghini | 42 | 1:31.860 | 
| 18 | 32 | Bertrand GachotGAC | Jordan Ford | 28 | 1:33.534 | 
| 19 | 29 | Eric BernardBER | Lola Ford | 17 | 1:33.555 | 
| 20 | 3 | Satoru NakajimaNAK | Tyrrell Honda | 15 | 1:44.827 | 
| 21 | 24 | Gianni MorbidelliMOR | Minardi Ferrari | 10 | 1:50.522 | 
| 22 | 28 | Jean AlesiALE | Ferrari | 2 | 1:55.709 | 
| 23 | 30 | Aguri SuzukiSUZ | Lola Ford | 2 | 2:01.658 | 
| 24 | 20 | Nelson PiquetPIQ | Benetton Ford | 1 | 2:21.555 |