France’s Quentin Halys produced one of the biggest upsets of the EFG Swiss Open Gstaad (ATP 250) by defeating top seed and defending champion Alexander Bublik of Kazakhstan 6–7(4), 6–4, 7–6(5) in the Round of 16 on 15 July 2026. The thrilling encounter at Roy Emerson Arena saw Halys recover from losing the opening set before prevailing in a tense deciding-set tie-break to secure a place in the quarter-finals.
The match began with both players holding serve confidently, forcing the opening set into a tie-break. Bublik edged the breaker 7–4 to take an early advantage, using his powerful serve and aggressive shot-making to move one set away from the last eight.
Halys responded impressively in the second set, remaining composed from the baseline and taking advantage of a key service break to level the contest with a 6–4 win. The Frenchman maintained his momentum in a closely fought deciding set, where neither player managed to create much separation.
The outcome was ultimately decided in another tie-break, and Halys held his nerve during the crucial points to claim it 7–5, completing a memorable comeback after more than two hours of intense tennis. The victory ended Bublik’s title defence and sent Halys into the quarter-finals with one of the standout wins of the tournament.
Standout Performances
- Quentin Halys (France): Defeated Alexander Bublik 6–7(4), 6–4, 7–6(5).
- Alexander Bublik (Kazakhstan): Top seed and defending champion.
- Round: Round of 16.
- Result: Halys advanced to the quarter-finals.
Halys’ resilience proved decisive after dropping the opening set. He stayed composed under pressure, captured the second set, and produced an outstanding performance in the deciding-set tie-break to complete the comeback.
Match Statistics
- Tournament: EFG Swiss Open Gstaad (ATP 250)
- Round: Round of 16
- Date: 15 July 2026
- Venue: Roy Emerson Arena, Gstaad, Switzerland
- Winner: Quentin Halys (France)
- Runner-up: Alexander Bublik (Kazakhstan)
- Final Score: 6–7(4), 6–4, 7–6(5)
- Result: Quentin Halys advanced to the quarter-finals.