(Baca juga: Penasaran dengan Ana Carrasco, Marc Marquez Berikan Pertanyaan Khusus)
Sementara itu, sang pemuncak klasemen sementara, Marc Marquez (Repsol Honda) yang sempat menjadi yang tercepat selama lebih dari 30 menit, harus rela menempati posisi kelima.
Marc Marquez mencatat waktu lap tercepat 1 menit 31,668 detik di Sirkuit Internasional Chang itu.
Berikut adalah hasil lengkap sesi FP1 MotoGP Thailand 2018, Jumat (5/10/2018):
| Pos. | Pebalap | Tim | Waktu |
|---|---|---|---|
| 1 | Maverick VIÑALES | Movistar Yamaha MotoGP | 1'31.220 |
| 2 | Valentino ROSSI | Movistar Yamaha MotoGP | 1'31.490 |
| 3 | Andrea DOVIZIOSO | Ducati Team | 1'31.636 |
| 4 | Jack MILLER | Alma Pramac Racing | 1'31.637 |
| 5 | Marc MARQUEZ | Repsol Honda Team | 1'31.668 |
| 6 | Johann ZARCO | Monster Yamaha Tech 3 | 1'31.786 |
| 7 | Andrea IANNONE | Team SUZUKI ECSTAR | 1'31.860 |
| 8 | Takaaki NAKAGAMI | LCR Honda IDEMITSU | 1'32.040 |
| 9 | Danilo PETRUCCI | Alma Pramac Racing | 1'32.108 |
| 10 | Scott REDDING | Aprilia Racing Team Gresini | 1'32.191 |
| 11 | Cal CRUTCHLOW | LCR Honda CASTROL | 1'32.280 |
| 12 | Aleix ESPARGARO | Aprilia Racing Team Gresini | 1'32.313 |
| 13 | Dani PEDROSA | Repsol Honda Team | 1'32.414 |
| 14 | Alex RINS | Team SUZUKI ECSTAR | 1'32.422 |
| 15 | Franco MORBIDELLI | EG 0,0 Marc VDS | 1'32.479 |
| 16 | Alvaro BAUTISTA | Angel Nieto Team | 1'32.520 |
| 17 | Jorge LORENZO | Ducati Team | 1'32.521 |
| 18 | Pol ESPARGARO | Red Bull KTM Factory Racing | 1'32.648 |
| 19 | Hafizh SYAHRIN | Monster Yamaha Tech 3 | 1'32.770 |
| 20 | Karel ABRAHAM | Angel Nieto Team | 1'32.947 |
| 21 | Bradley SMITH | Red Bull KTM Factory Racing | 1'33.092 |
| 22 | Thomas LUTHI | EG 0,0 Marc VDS | 1'33.133 |
| 23 | Xavier SIMEON | Reale Avintia Racing | 1'33.272 |
| 24 | Jordi TORRES | Reale Avintia Racing | 1'33.406 |