1991 · Round 13 · FP Portuguese Grand Prix
Autódromo do Estoril, Portugal
Sunday, September 22, 1991
Autódromo do Estoril, Portugal
Sunday, September 22, 1991
Fastest
PAT
1:14.158
Margin
+0.613
to BER
Most laps
—
PAT
Laps completed
—
Best lap, gap to the fastest driver and laps completed
| Pos | Driver | Best | Gap | Laps |
|---|---|---|---|---|
| 01 | PATWilliams · Williams FW14 · Renault | 1:14.158 | — | — |
| 02 | BERMcLaren · McLaren MP4-6 Honda · Honda | 1:14.771 | +0.613 | — |
| 03 | SENMcLaren · McLaren MP4-6 Honda · Honda | 1:14.845 | +0.687 | — |
| 04 | DECJordan · Jordan 191 · Ford | 1:15.332 | +1.174 | — |
| 05 | MANWilliams · Williams FW14 · Renault | 1:15.955 | +1.797 | — |
| 06 | MORJordan · Jordan 191 · Ford | 1:16.131 | +1.973 | — |
| 07 | PIQBenetton · Benetton Ford B191 ~ Benetton B190B · Ford | 1:16.279 | +2.121 | — |
| 08 | PROFerrari · Ferrari 642 F1 91 ~ Ferrari 643 F1 91 | 1:16.298 | +2.140 | — |
| 09 | CAPLeyton House · Leyton House CG911 · Ilmor | 1:16.523 | +2.365 | — |
| 10 | MARMinardi · Minardi M191 · Ferrari | 1:16.694 | +2.536 | — |
| 11 | JARBMS Scuderia Italia · Dallara BMS-F191 Judd · Judd | 1:16.731 | +2.573 | — |
| 12 | MORMinardi · Minardi M191 · Ferrari | 1:16.753 | +2.595 | — |
| 13 | ALEFerrari · Ferrari 642 F1 91 ~ Ferrari 643 F1 91 | 1:16.801 | +2.643 | — |
| 14 | GUGLeyton House · Leyton House CG911 · Ilmor | 1:17.008 | +2.850 | — |
| 15 | PIRBMS Scuderia Italia · Dallara BMS-F191 Judd · Judd | 1:17.030 | +2.872 | — |
| 16 | MODTyrrell · Tyrrell 020 · Honda | 1:17.129 | +2.971 | — |
| 17 | BOULigier · Ligier JS35B ~ Ligier JS35 · Lamborghini | 1:17.804 | +3.646 | — |
| 18 | NAKTyrrell · Tyrrell 020 · Honda | 1:17.870 | +3.712 | — |
| 19 | BERLarrousse · Larrousse 91 · Cosworth | 1:18.370 | +4.212 | — |
| 20 | BRUBrabham · Brabham BT59Y ~ Brabham BT60Y · Yamaha | 1:18.469 | +4.311 | — |
| 21 | ALBFootwork · A11C FA12 · Porsche | 1:18.499 | +4.341 | — |
| 22 | COMLigier · Ligier JS35B ~ Ligier JS35 · Lamborghini | 1:18.649 | +4.491 | — |
| 23 | SUZLarrousse · Larrousse 91 · Cosworth | 1:18.847 | +4.689 | — |
| 24 | HERTeam Lotus · Lotus 102B · Judd | 1:18.897 | +4.739 | — |
| 25 | MSCBenetton · Benetton Ford B191 ~ Benetton B190B · Ford | 1:18.943 | +4.785 | — |
| 26 | TARAGS · JH25B JH27 · Cosworth | 1:19.314 | +5.156 | — |
| 27 | HAKTeam Lotus · Lotus 102B · Judd | 1:19.727 | +5.569 | — |
| 28 | BLUBrabham · Brabham BT59Y ~ Brabham BT60Y · Yamaha | 1:19.820 | +5.662 | — |
| 29 | VANModena · Lambo 291 · Lamborghini | 1:20.043 | +5.885 | — |
| 30 | LARModena · Lambo 291 · Lamborghini | 1:22.315 | +8.157 | — |