Binder locked horns with team-mate Jack Miller for victory in the sprint race, making a decisive move on the penultimate tour before scampering 0.428 seconds clear to the chequered flag.
Ducati’s Francesco Bagnaia was second after passing Miller on the last lap to close to three points off the championship lead, after VR46 Ducati’s Marco Bezzecchi could only manage ninth in a chaotic afternoon.
The 12-lap sprint was red-flagged on the opening lap after Yamaha’s Franco Morbidelli made contact with Alex Marquez at Turn 2 and tipped both into a crash.
Morbidelli’s errant machine found itself in the path of Bezzecchi, who could do nothing to avoid it and also went down. Tech3 GASGAS rider Augusto Fernandez had his own incident at the crash site.
A fire on Bezzecchi’s Ducati forced the race to be stopped. All riders were able to take the restart, which was run over 11 laps.
Miller grabbed the holeshot off the line from poleman Aleix Espargaro on the Aprilia at the original start, and at the restart it the latter found himself overhauled by both KTM’s again.
This time it was Binder who took the lead from Miller, while both Pramac’s Jorge Martin and Bagnaia quickly moved Espargaro down to fifth across the opening lap.
Source: Autosport