Stan Wawrinka defeated Damir Dzumhur 6-3 6-4 in the St. Petersburg quarter-final on carpet. The upset overturned the form book — Damir Dzumhur came in ranked #87, leading the head-to-head 4–1, defending the title. Stan Wawrinka narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-07-23 | Umag | R16 | clay | Damir Dzumhur | 6-4 7-5 |
| 2025-07-20 | Umag | R16 | clay | Damir Dzumhur | 6-4 7-5 |
| 2020-01-20 | Australian Open | R128 | hard | Stan Wawrinka | 7-5 6-7 6-4 6-4 |
| 2019-05-20 | Geneva | R16 | clay | Damir Dzumhur | 3-6 6-3 6-4 |
| 2017-02-27 | Dubai | R32 | hard | Damir Dzumhur | 7-6 6-3 |
Averages over each player's completed matches in the selected window (198 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Wawrinka S.: 5 days rest · 1 match, 29 games (7d) · Dzumhur D.: 5 days rest · 1 match, 5 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About