| P | Rider | Team | Km/h | Lap time | Gap 1st/Prev. | |||
|---|---|---|---|---|---|---|---|---|
| 1 | Marc Marquez | Repsol Honda | 294.2 | 01:33.409 | ||||
| 2 | Maverick Viñales | Monster Energy Yamaha | 289.5 | 01:33.537 | 0.128 / 0.128 | |||
| 3 | Andrea Dovizioso | Ducati | 295.8 | 01:33.661 | 0.252 / 0.124 | |||
| 4 | Fabio Quartararo | Petronas Yamaha | 291.1 | 01:33.682 | 0.273 / 0.021 | |||
| 5 | Takaaki Nakagami | LCR Honda Idemitsu | 292.6 | 01:33.684 | 0.275 / 0.002 | |||
| 6 | Franco Morbidelli | Petronas Yamaha | 291.8 | 01:33.695 | 0.286 / 0.011 | |||
| 7 | Pol Espargaro | Red Bull KTM | 290.3 | 01:33.717 | 0.308 / 0.022 | |||
| 8 | Alex Rins | Suzuki Ecstar | 293.4 | 01:33.919 | 0.510 / 0.202 | |||
| 9 | Joan Mir | Suzuki Ecstar | 292.6 | 01:33.945 | 0.536 / 0.026 | |||
| 10 | Valentino Rossi | Monster Energy Yamaha | 288.0 | 01:33.953 | 0.544 / 0.008 | |||
| 11 | Michele Pirro* | Ducati | 295.0 | 01:33.953 | 0.544 / 0.000 | |||
| 12 | Jack Miller | Pramac Racing | 295.8 | 01:34.000 | 0.591 / 0.047 | |||
| 13 | Aleix Espargaro | Aprilia Gresini | 291.8 | 01:34.092 | 0.683 / 0.092 | |||
| 14 | Danilo Petrucci | Ducati | 294.2 | 01:34.361 | 0.952 / 0.269 | |||
| 15 | Francesco Bagnaia | Pramac Racing | 291.8 | 01:34.446 | 1.037 / 0.085 | |||
| 16 | Cal Crutchlow | LCR Honda Castrol | 292.6 | 01:34.475 | 1.066 / 0.029 | |||
| 17 | Miguel Oliveira | KTM Tech 3 | 286.4 | 01:34.585 | 1.176 / 0.110 | |||
| 18 | Tito Rabat | Reale Avintia Racing | 292.6 | 01:34.602 | 1.193 / 0.017 | |||
| 19 | Hafizh Syahrin | KTM Tech 3 | 290.3 | 01:34.674 | 1.265 / 0.072 | |||
| 20 | Jorge Lorenzo | Repsol Honda | 291.1 | 01:34.864 | 1.455 / 0.190 | |||
| 21 | Karel Abraham | Reale Avintia Racing | 289.5 | 01:34.994 | 1.585 / 0.130 | |||
| 22 | Johann Zarco | Red Bull KTM | no time |
*Wild card entry
Note: Aprilia Racing Team Gresini rider Andrea Iannone was declared unfit for the San Marino Grand Prix after several practice crashes