Rinderknech Stuns Tsitsipas to Reach Gstaad Semi-Finals

Three Sets, Two Tie-Breaks, One Major Upset

Arthur Rinderknech is through to the semi-finals of the EFG Swiss Open Gstaad after defeating Stefanos Tsitsipas 6-7(9), 7-6(5), 7-5 in a quarter-final that twisted repeatedly before the Frenchman claimed a famous victory on Friday afternoon. The result is the biggest upset of the week across the ATP summer clay circuit and arguably the finest clay-court win of Rinderknech's career at tour level.

Tsitsipas had the upper hand for long stretches of the first set, eventually forcing a tie-break and building a commanding advantage inside it. Rinderknech saved nine set points in the shootout, yet still could not prevent the Greek from stealing the opener 11-9. It was the kind of first set that can demoralise even the most experienced professionals — but Rinderknech responded in the opposite way entirely.

Rinderknech Seizes Control in the Second

The second set changed the complexion of the match. With Tsitsipas looking to consolidate, Rinderknech applied steady pressure from the baseline and broke at the critical moment, before levelling the contest by winning the second tie-break 7-5. The 29-year-old Frenchman, traditionally more comfortable on hard courts, was performing with a composure on the Swiss clay that pointed to something out of the ordinary.

The decider lived up to everything that preceded it. Both players held serve reliably until 5-5, when Rinderknech conjured the decisive break. He then served out for 7-5 to reach the semi-finals, sending Tsitsipas — regarded as one of the title favourites heading into the week — out of the tournament. The Frenchman's shot-making under pressure throughout the third set was a cut above what the tournament had seen in the earlier rounds.

Back-to-Back Three-Setters Underline His Form

Friday's victory over Tsitsipas was not Rinderknech's first extended battle of the week. In the previous round he came through another demanding three-setter against compatriot Clément Tabur, winning 6-7, 7-6, 7-5 — an almost identical scoreline to the quarter-final. Two consecutive three-set wins on a clay surface that tests the legs as much as the technique is no small feat at this stage of the summer.

For Rinderknech, the trajectory across this week in the Swiss Alps tells its own story: increasingly assertive in the rallies, increasingly clinical when the pressure was at its highest. He now awaits a semi-final against one of the remaining contenders in the bottom half of the draw, with the prospect of a first ATP title on clay a genuine possibility if he maintains this level.

Ruud and Cerundolo Among the Remaining Contenders

Casper Ruud, the second seed and one of the tour's most consistent clay performers, has advanced to the quarter-finals after surviving a difficult three-set contest in the previous round. The Norwegian will face Juan Manuel Cerundolo, who defeated Miomir Kečmanović in three sets to reach the last eight, in a quarter-final that could produce either man as Rinderknech's opponent on Saturday.

Valentin Vacherot and Raphaël Collignon are also still alive in the Gstaad draw. The Belgian Collignon, who defeated Lorenzo Sonego in back-to-back tie-breaks, has been one of the quiet movers of the week and brings an added unpredictability to the semi-final stage. The draw has opened up, and Rinderknech enters Saturday as the man who has already beaten the biggest name left in the field.