Pedro Acosta dominated the opening day of MotoGP's Hungarian Grand Prix weekend, with Pecco Bagnaia among those who'll have to go through Q1 at Balaton.

KTM rider Acosta was top in the session even before the late new-tyre runs and then claimed a 0.413-second margin over this rivals at the end.

VR46 Ducati's Fabio Di Giannantonio was his nearest rival, leaping from outside the top 10 to second late on.

All four Aprilias got through to Q2, led by Raul Fernandez in third - with his Trackhouse team-mate Ai Ogura showing unusually good one-lap pace in fifth behind Fermin Aldeguer's Gresini Ducati.

Marc Marquez lost a late lap to a trip through the gravel but made Q2 in seventh, while Ducati team-mate Bagnaia had another disappointing Friday in 14th.

LCR's Diogo Moreira was again comfortably best Honda in eighth.

Jack Miller got a Yamaha straight into Q2 in 10th, but stablemates Fabio Quartararo and Toprak Razgatlioglu were compromised while running together after Quartararo ran off track and rejoined in front of the Pramac rider.

Into Q2: Pedro Acosta, Fabio Di Giannantonio, Raul Fernandez, Fermin Aldeguer, Ai Ogura, Marco Bezzecchi, Marc Marquez, Diogo Moreira, Jorge Martin, Jack Mller

Brad Binder was showing strong pace in the first half of a late lap before crashing his KTM and ending up 18th.

That put him behind a very impressive performance from Gresini's Alex Marquez stand-in Iker Lecuona. The Ducati World Superbike star, in his first MotoGP session since November 2023, spent a while in the top 10 before the new-tyre runs and was a commendable 17th at the end.