A 1m14.999s for the Spaniard, 0.6s ahead of Leclerc - both drivers on the softs.
Verstappen's first time of the day puts him third, only 0.6s down - he's on the 'test' tyre.
A 1m14.999s for the Spaniard, 0.6s ahead of Leclerc - both drivers on the softs.
Verstappen's first time of the day puts him third, only 0.6s down - he's on the 'test' tyre.
A 1m16.842s for the Finn - 0.7s ahead of Alfa Romeo teammate Zhou.
Ocon soon takes to the top with a 1m16.303s, 0.3s ahead of Gasly, 0.5s clear of Bottas.
Another 60 minutes of running in Spain is now underway!
Not long now until the second session of the day.
Verstappen tops the session ahead of Perez, Ocon and de Vries.
After a slow start to the session, Alonso moves into eighth overall. 1.1s down on Verstappen.
Verstappen on top ahead of Perez, de Vries, Leclerc and Sainz.
Another tidy lap from the AlphaTauri driver, 0.8s off the pace.
Verstappen, Perez, Sainz, Norris, Zhou, Bottas, Magnussen, Piastri, Gasly and Hulkenberg.
Zhou into third; Bottas fourth - they're 1.3s off.
A big lap from Verstappen to move back ahead of his teammate.
Making the most of the softs, he takes to the top with a 1m15.374s.
A strong session so far for de Vries - he's up to fifth, 1.0s down on Verstappen.
Perez takes to the track on softs.
"Car is bouncing under braking for turn 10 and the last corner," says Verstappen.
With 20 minutes gone in FP1, the top 10 currently is: Verstappen, Perez, Tsunoda, Hulkenberg, Ocon, Leclerc, Bottas, Gasly, Albon and Sargeant.
"I'm starting to bounce as I go into the final corner."
After running on the test tyre, he's now out on the mediums.
He has a 0.4s advantage over his teammate.
A 1m16.583s for the championship leader - 0.8s ahead of Perez.
Verstappen, Perez, Tsunoda, Ocon, Gasly, Hamilton, Hulkenberg, Sainz, Magnussen and Russell.