Pertempuran MotoGP 2018 telah dimulaidi Sirkuit Internasional Losail Qatar. Dovizioso, Rossi, Marquez menguasai tiga besar di FP1.
| Pos | Driver | Team | Time | Gap | Laps |
|---|---|---|---|---|---|
| 1 | Andrea Dovizioso | Ducati Team | 1:55.366 | ||
| 2 | Valentino Rossi | Yamaha MotoGP | 1:55.427 | 0.061 | |
| 3 | Marc Marquez | Honda Team | 1:55.743 | 0.377 | |
| 4 | Andrea Iannone | Suzuki Ecstar | 1:55.816 | 0.450 | |
| 5 | Jorge Lorenzo | Ducati Team | 1:55.888 | 0.522 | |
| 6 | Johann Zarco | Yamaha Tech 3 | 1:55.943 | 0.577 | |
| 7 | Cal Crutchlow | LCR Honda | 1:55.989 | 0.623 | |
| 8 | Alex Rins | Suzuki Ecstar | 1:55.997 | 0.631 | |
| 9 | Danilo Petrucci | Pramac Racing | 1:56.076 | 0.710 | |
| 10 | Tito Rabat | Avintia Racing | 1:56.111 | 0.745 | |
| 11 | Maverick Vinales | Yamaha MotoGP | 1:56.130 | 0.764 | |
| 12 | Dani Pedrosa | Honda Team | 1:56.265 | 0.899 | |
| 13 | Aleix Espargaro | Aprilia Racing | 1:56.313 | 0.947 | |
| 14 | Alvaro Bautista | Angel Nieto Team | 1:56.528 | 1.162 | |
| 15 | Hafizh Syahrin | Yamaha Tech 3 | 1:56.544 | 1.178 | |
| 16 | Jack Miller | Pramac Racing | 1:56.680 | 1.314 | |
| 17 | Pol Espargaro | KTM Racing | 1:56.999 | 1.633 | |
| 18 | Scott Redding | Aprilia Racing | 1:57.115 | 1.749 | |
| 19 | Takaaki Nakagami | LCR Honda | 1:57.183 | 1.817 | |
| 20 | Thomas Luthi | Marc VDS | 1:57.211 | 1.845 | |
| 21 | Franco Morbidelli | Marc VDS | 1:57.273 | 1.907 | |
| 22 | Bradley Smith | KTM Racing | 1:57.389 | 2.023 | |
| 23 | Xavier Simeon | Avintia Racing | 1:59.151 | 3.785 | |
| 24 | Karel Abraham | Angel Nieto Team | 1:59.462 | 4.096 |
