Qualification session 1
samedi 29 mai 2021, 13h42 GMT – 14h05 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Fermin Aldeguer | +EGO Speed Up | 1′ 51.71″ |
| 2 | Somkiat Chantra | IDEMITSU Honda Team Asia | + 0.114″ |
| 3 | Marcos Ramírez | American Racing | + 0.296″ |
| 4 | Bo Bendsneyder | Pertamina Mandalika SAG Team | + 0.416″ |
| 5 | Héctor Garzó | Flexbox HP40 | + 0.45″ |
| 6 | Hafizh Syahrin | NTS RW Racing GP | + 0.577″ |
| 7 | Simone Corsi | MV Agusta Forward Racing | + 0.593″ |
| 8 | Jake Dixon | Petronas Sprinta Racing | + 0.658″ |
| 9 | Stefano Manzi | Flexbox HP40 | + 0.672″ |
| 10 | Nicolò Bulega | Federal Oil Gresini Moto2 | + 0.745″ |
| 11 | Lorenzo Baldassarri | MV Agusta Forward Racing | + 1.153″ |
| 12 | Cameron Beaubier | American Racing | + 1.298″ |
| 13 | Celestino Vietti | SKY Racing Team VR46 | + 1.4″ |
| 14 | Thomas Lüthi | Pertamina Mandalika SAG Team | + 1.42″ |
| 15 | Barry Baltus | NTS RW Racing GP | + 1.854″ |
| 16 | Albert Arenas | Kipin Energy Aspar Team | + 2.856″ |
| 17 | Tommaso Marcon | MV Agusta Forward Racing | + 2.939″ |