Rivacold Snipers Team’s Alberto Surra topped the opening session of the weekend at the Pertamina Grand Prix of Indonesia, as the Moto3™ riders completed a damp FP1. Deniz Öncü (Red Bull KTM Tech3) and Izan Guevara (Gaviota GASGAS Aspar Team) completed the top three in tricky conditions, the fastest trio split by 0.062s.