Alex Marquez carried his form from the Malaysian Grand Prix back to Europe as he topped Free Practice One in Portugal.
In the opening Practice session of the weekend, Alex Marquez controlled the session for the BK8 Gresini Racing MotoGP squad as he had an advantage of 0.196 seconds over the field.
Marco Bezzecchi and Aprilia struggled in Malaysia two weeks ago, but the Italian was back in the top three on Friday at Portimao as he ended the session in second place.
Jack Miller was the top Yamaha rider in the opening MotoGP Free Practice session as he was in third place for the Prima Pramac Racing squad.
The second rider from a Japanese manufacturer in the top five was the LCR Honda Castrol rider, Johann Zarco, who was in fourth place.
After an early crash in Free Practice One, Pol Espargaro had a positive morning at Portimao as he put the Red Bull KTM Tech3 squad into fifth place.
Franco Morbidelli was the second Ducati rider to feature inside the top ten on Friday morning as he was in sixth place on the Pertamina Enduro VR46 Racing Team.
The Honda HRC Castrol squad had both riders in the top ten in Free Practice One, as Luca Marini was in seventh place and Joan Mir was in eighth place.
Pedro Acosta was the second KTM rider to feature inside the top ten on Friday morning as he ended up in ninth place on the Red Bull KTM Factory Racing RC16.
Completing the top ten was the second BK8 Gresini Racing MotoGP rider, Fermin Aldeguer.
Nicolo Bulega made his debut as a MotoGP rider in Free Practice One. The Italian rider was in 14th place at the end of the session, and was three places ahead of Francesco Bagnaia, who was in 17th.
MotoGP Portugal, Full Free Practice One Results:
| 2025 Portuguese Moto3 | Autodromo Internacional do Algarve | Free Practice One Results | Round 21 of 22 | |||||
| Pos | Name | Nat. | Team | Bike | Times |
| 1 | Alex Marquez | ESP | BK8 Gresini Racing MotoGP | Ducati GP24 | 1:39.145 |
| 2 | Marco Bezzecchi | ITA | Aprilia Racing | Aprilia RS-GP | 1:39.341 |
| 3 | Jack Miller | AUS | Prima Pramac Racing | Yamaha M1 | 1:39.378 |
| 4 | Johann Zarco | FRA | LCR Honda Castrol | Honda RC213V | 1:39.494 |
| 5 | Pol Espargaro | ESP | Red Bull KTM Tech3 | KTM RC16 | 1:39.506 |
| 6 | Franco Morbidelli | ITA | Pertamina Enduro VR46 Racing Team | Ducati GP24 | 1:39.534 |
| 7 | Luca Marini | ITA | Honda HRC Castrol | Honda RC213V | 1:39.549 |
| 8 | Joan Mir | ESP | Honda HRC Castrol | Honda RC213V | 1:39.550 |
| 9 | Pedro Acosta | ESP | Red Bull KTM Factory Racing | KTM RC16 | 1:39.666 |
| 10 | Fermin Aldeguer | ESP | BK8 Gresini Racing MotoGP | Ducati GP24 | 1:39.685 |
| 11 | Fabio Quartararo | FRA | Monster Energy Yamaha | Yamaha M1 | 1:39.732 |
| 12 | Fabio di Giannantonio | ITA | Pertamina Enduro VR46 Racing Team | Ducati GP25 | 1:39.737 |
| 13 | Ai Ogura | JPN | Trackhouse Racing | Aprilia RS-GP | 1:39.986 |
| 14 | Nicolo Bulega | ITA | Ducati Lenovo Team | Ducati GP25 | 1:40.073 |
| 15 | Brad Binder | RSA | Red Bull KTM Factory Racing | KTM RC16 | 1:40.185 |
| 16 | Alex Rins | ESP | Monster Energy Yamaha | Yamaha M1 | 1:40.221 |
| 17 | Pecco Bagnaia | ITA | Ducati Lenovo Team | Ducati GP25 | 1:40.306 |
| 18 | Raul Fernandez | ESP | Trackhouse Racing | Aprilia RS-GP | 1:40.349 |
| 19 | Enea Bastianini | ITA | Red Bull KTM Tech3 | KTM RC16 | 1:40.400 |
| 20 | Miguel Oliveira | POR | Prima Pramac Racing | Yamaha M1 | 1:40.857 |
| 21 | Somkiat Chantra | THA | LCR Honda IDEMITSU | Honda RC213V | 1:41.263 |
| 22 | Lorenzo Savadori | ITA | Aprilia Racing | Aprilia RS-GP | 1:41.520 |
