By Soup StaffMotoGP Thailand FP4 Results 2018. The PTT Thailand Grand Prix from Chang International Circuit, Buriram, Thailand. The 15th round of the 2018 MotoGP season.
| Pos. | Rider | Team | Bike | Time |
|---|---|---|---|---|
| 1 | Andrea Dovizioso | Ducati Team | Ducati GP18 | 1:30.693 |
| 2 | Marc Marquez | Repsol Honda Team | Honda RC213V | 1:30.976 |
| 3 | Valentino Rossi | Movistar Yamaha MotoGP | Yamaha YZR-M1 | 1:31.104 |
| 4 | Maverick Vinales | Movistar Yamaha MotoGP | Yamaha YZR-M1 | 1:31.165 |
| 5 | Andrea Iannone | Team SUZUKI ECSTAR | Suzuki GSX-RR | 1:31.242 |
| 6 | Danilo Petrucci | Alma Pramac Racing | Ducati GP18 | 1:31.341 |
| 7 | Cal Crutchlow | LCR Honda | Honda RC213V | 1:31.522 |
| 8 | Dani Pedrosa | Repsol Honda Team | Honda RC213V | 1:31.586 |
| 9 | Jack Miller | Alma Pramac Racing | Ducati GP18 | 1:31.591 |
| 10 | Alvaro Bautista | Pull&Bear Aspar Team | Ducati | 1:31.623 |
| 11 | Johann Zarco | Monster Yamaha Tech 3 | Yamaha YZR-M1 | 1:31.635 |
| 12 | Franco Morbidelli | Team EG 0,0 Marc VDS | Honda RC213V | 1:31.733 |
| 13 | Alex Rins | Team SUZUKI ECSTAR | Suzuki GSX-RR | 1:31.754 |
| 14 | Bradley Smith | Red Bull KTM Factory Racing | KTM | 1:32.050 |
| 15 | Takaaki Nakagami | LCR Honda IDEMITSU | Honda RC213V | 1:32.099 |
| 16 | Aleix Espargaro | Aprilia Racing Team Gresini | Aprilia RS-GP | 1:32.171 |
| 17 | Thomas Luthi | Team EG 0,0 Marc VDS | Honda RC213V | 1:32.257 |
| 18 | Hafizh Syahrin | Monster Yamaha Tech 3 | Yamaha YZR-M1 | 1:32.459 |
| 19 | Xavier Simeon | Reale Avintia Racing | Ducati | 1:32.527 |
| 20 | Karel Abraham | Ángel Nieto Team | Ducati | 1:32.554 |
| 21 | Pol Espargaro | Red Bull KTM Factory Racing | KTM | 1:32.706 |
| 22 | Scott Redding | Aprilia Racing Team Gresini | Aprilia RS-GP | 1:32.719 |
| 23 | Jordi Torres | Reale Avintia Racing | Ducati | 1:33.157 |
