Dominique Graf defeated Roman Postolka 6-3 5-7 10-7 in the M25 Prostejov 1 q32 on clay. The upset overturned the form book — Roman Postolka came in leading the head-to-head 1–0. Dominique Graf claimed a first win over Roman Postolka in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-18 | M25 Pardubice 1 | Q32 | clay | Roman Postolka | 7-6(3) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.