Mert Naci Turker defeated Altug Celikbilek 6-7 7-6 6-4 in the Turkey F24 round of 32 on clay. The upset overturned the form book — Altug Celikbilek came in leading the head-to-head 1–0. Mert Naci Turker claimed a first win over Altug Celikbilek in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-06-08 | Turkey F23 | R32 | hard | Altug Celikbilek | 6-3 6-1 |
Averages over each player's completed matches in the selected window (160 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About