The Frenchman, currently at a career-high No. 100 in the FedEx ATP Rankings, has now claimed a personal-best nine wins at tour-level this season. He had never won a match at this level before this year.
Rinderknech was impressive throughout, striking the ball powerfully from the baseline to dictate. He hit eight aces and won 79 per cent (30/38) of his first-service points against the second seed to advance in one hour and 34 minutes. It is his second Top 20 win of his career, having beaten then World No. 17 #NextGenATP Jannik Sinner in Lyon in May.
The 25-year-old will next face Laslo Djere in his fourth quarter-final of the season having enjoyed runs to the last eight in Bastad, Marseille, and Lyon this year.
His next opponent, seventh seed Djere, reached his sixth tour-level quarter-final of the season as he moved past qualifier Zizou Bergs 6-2, 4-6, 6-2 in two hours and five minutes. The Serbian, who broke Bergs seven times at the ATP 250 event, has now recorded 16 clay-court wins this year. His best result was a run to the final at the Sardegna Open (l. to Sonego) in Cagliari.
#NextGenATP Alcaraz Overcomes Pouille In Umag Debut
The Frenchman was pegged back from 5-2 in the second set, losing three straight games, before he rallied in the decider to claim victory in two hours and 20 minutes. He will next face either fourth-seeded Chilean Cristian Garin or Marc Polmans.
Gaston, currently No. 155 in the FexEx ATP Rankings, enjoyed a breakthrough run to the fourth round at Roland Garros (l. Thiem) last October. He has now claimed 16 clay-court wins at all levels this season, having reached ATP Challenger Tour finals at the Concord Iasi Open and the Roma Garden Open I.