S Mert Ozdemir defeated Freek Van Donselaar 7-6 6-3 in the M15 Kayseri 1 q64 on hard. The upset overturned the form book — Freek Van Donselaar came in leading the head-to-head 1–0. S Mert Ozdemir claimed a first win over Freek Van Donselaar in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-03-24 | M15 Antalya 8 | Q64 | clay | Freek Van Donselaar | 2-6 7-5 10-7 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.