Approaching the end of the first hour and Moto2 title leader Manuel Gonzalez is 2.634s from the top after his first 17 laps on a MotoGP bike.
LCR Honda rookie Somkiat Chantra (6 laps) and Fermin Aldeguer (2 laps) are behind him.
Approaching the end of the first hour and Moto2 title leader Manuel Gonzalez is 2.634s from the top after his first 17 laps on a MotoGP bike.
LCR Honda rookie Somkiat Chantra (6 laps) and Fermin Aldeguer (2 laps) are behind him.
Pedro Acosta, who was thwarted in his efforts to pass Francesco Bagnaia for third in the grand prix, is now between the Ducati Lenovo riders on the timesheets.
It's now a Ducati Lenovo one-two with Bagnaia just 0.029s behind team-mate Marquez.
Manuel Gonzalez improves to a 1m 49.665s, 2.894s behind Marc Marquez.
Trackhouse regular Raul Fernandez has set a 1m 48.170s so far.
Gresini's Alex Marquez, runner-up to Marc in both the Sprint and Grand Prix, jumps straight into the top four on his opening run of the day.
Brad Binder and Francesco Bagnaia climb to third and fourth, but 0.6s from Marc Marquez.
Marco Bezzecchi improves to 0.225s behind Marc Marquez on his 12th lap.
19 riders have now been on track, with only Franco Morbidelli, Fermin Aldeguer and Alex Marquez yet to take to the track.
10:30am: Marc Marquez, Maverick Vinales, Jack Miller, Joan Mir, Johann Zarco, Francesco Bagnaia, Marco Bezzecchi, Fabio di Giannantonio, Raul Fernandez, Brad Binder.
Manuel Gonzalez has done 9 laps, and is currently 3.054s from Marc Marquez.
Maverick Vinales now splits Marc Marquez and Jack Miller.
Sunday's race winner Marc Marquez is out on track and fastest after his 4th lap - by 0.871s from Jack Miller.
Marquez will be looking to extend his unbeaten streak from the weekend.
17mins gone and Bagnaia is the only rider in the 1m 47s, with Marco Bezzecchi next best with a '48.123.
As well as the KTM race riders, test rider Pol Espargaro is in action today.
10 riders have already set a lap time - it's an unusually busy start to a post-race test - with Francesco Bagnaia now fastest from Joan Mir.
3rd place Grand Prix finisher Bagnaia will be looking for confirmation of the improved front feeling from the bigger brake discs on his Ducati GP25, while Mir took his best MotoGP finish since 2023 with 7th on Sunday.
Test info from Aprilia:
• "During the test, Marco Bezzecchi will continue development work of the RS-GP25 with a focus on aerodynamics.
"To improve the rideability of the bike, he will also test new electronic solutions and a new exhaust system developed by our technical partner, SC-Project.
"Additionally, Bezzecchi will test a new version of the chassis previously developed by the Trackhouse MotoGP Team.
• "Lorenzo Savadori will focus primarily on evaluating and refining new electronic packages."
After the opening laps, it's Fabio Quartararo, who crashed out of Sunday's grand prix, fastest on a 1m 48.636s.
For comparison:
Official Aragon MotoGP Records:
Best lap: Marc Marquez, Ducati, 1m 45.704s (2025)
Fastest race lap: Marc Marquez, Ducati, 1m 46.705s (2025)
More riders stream out onto the track... Fabio Quartararo, Marco Bezzecchi, Pedro Acosta, Brad Binder and Moto2 title leader Manuel Gonzalez, making his MotoGP debut for Trackhouse.
Tech3 KTM's Maverick Vinales and Monster Yamaha's Alex Rins are first out.
It's 10am at Aragon and Monday's official test is underway in hot and sunny conditions.