Lorenzo Dalla Porta si aggiudica il Warm Up del Gran Premio della Thailandia classe Moto3, quindicesima tappa del Motomondiale 2018.
Il pilota del team Leopard, nell’ultimo turno prima della gara, ha fermato il cronometro sul 1:45.535, precedendo Marco Bezzecchi (PruestelGP) per 2 decimi.
| Pos | Num | Pilota | Moto | Team | Tempo | Gap |
| 1 | 48 | Lorenzo Dalla Porta | Honda | Leopard Racing | 1:42.535 | |
| 2 | 12 | Marco Bezzecchi | Ktm | Redox Pruestelgp | 1:42.734 | 0.199 |
| 3 | 16 | Andrea Migno | Ktm | Angel Nieto Team Moto3 | 1:42.791 | 0.256 |
| 4 | 8 | Nicolo Bulega | Ktm | Sky Racing Team Vr46 | 1:42.884 | 0.349 |
| 5 | 42 | Marcos Ramirez | Ktm | Bester Capital Dubai | 1:42.978 | 0.443 |
| 6 | 88 | Jorge Martin | Honda | Del Conca Gresini Moto3 | 1:42.983 | 0.448 |
| 7 | 21 | Fabio Di Giannantonio | Honda | Del Conca Gresini Moto3 | 1:43.038 | 0.503 |
| 8 | 23 | Niccolo Antonelli | Honda | Sic58 Squadra Corse | 1:43.130 | 0.595 |
| 9 | 10 | Dennis Foggia | Ktm | Sky Racing Team Vr46 | 1:43.139 | 0.604 |
| 10 | 71 | Ayumu Sasaki | Honda | Petronas Sprinta Racing | 1:43.162 | 0.627 |
| 11 | 75 | Albert Arenas | Ktm | Angel Nieto Team Moto3 | 1:43.167 | 0.632 |
| 12 | 77 | Vicente Perez | Ktm | Reale Avintia Academy 77 | 1:43.190 | 0.655 |
| 13 | 14 | Tony Arbolino | Honda | Marinelli Snipers Team | 1:43.207 | 0.672 |
| 14 | 40 | Darryn Binder | Ktm | Red Bull Ktm Ajo | 1:43.258 | 0.723 |
| 15 | 22 | Kazuki Masaki | Ktm | Rba Boe Skull Rider | 1:43.328 | 0.793 |
| 16 | 65 | Philipp Oettl | Ktm | Sudmetal Schedl Gp Racing | 1:43.361 | 0.826 |
| 17 | 17 | John Mcphee | Ktm | Cip – Green Power | 1:43.394 | 0.859 |
| 18 | 41 | Nakarin Atiratphuvapat | Honda | Honda Team Asia | 1:43.402 | 0.867 |
| 19 | 84 | Jakub Kornfeil | Ktm | Redox Pruestelgp | 1:43.440 | 0.905 |
| 20 | 19 | Gabriel Rodrigo | Ktm | Rba Boe Skull Rider | 1:43.497 | 0.962 |
| 21 | 72 | Alonso Lopez | Honda | Estrella Galicia 00 | 1:43.502 | 0.967 |
| 22 | 5 | Jaume Masia | Ktm | Bester Capital Dubai | 1:43.590 | 1.055 |
| 23 | 35 | Somkiat Chantra | Honda | Ap Honda Racing Thailand | 1:43.627 | 1.092 |
| 24 | 33 | Enea Bastianini | Honda | Leopard Racing | 1:43.692 | 1.157 |
| 25 | 7 | Adam Norrodin | Honda | Petronas Sprinta Racing | 1:43.806 | 1.271 |
| 26 | 27 | Kaito Toba | Honda | Honda Team Asia | 1:43.900 | 1.365 |
| 27 | 52 | Jeremy Alcoba | Honda | Estrella Galicia 00 | 1:43.948 | 1.413 |
| 28 | 24 | Tatsuki Suzuki | Honda | Sic58 Squadra Corse | 1:44.064 | 1.529 |
| 29 | 9 | Apiwath Wongthananon | Ktm | Vr46 Master Camp Team | 1:44.110 | 1.575 |
| 30 | 81 | Stefano Nepa | Ktm | Cip – Green Power | 1:44.158 | 1.623 |
