Altug Celikbilek defeated Cem Ilkel 7-5 6-3 in the Turkey F22 qualifying round on hard. The upset overturned the form book — Cem Ilkel came in leading the head-to-head 3–2, but Altug Celikbilek had been the form player, winning 6 of their last 8 on hard. Altug Celikbilek narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-02-20 | Turkey F7 | SF | hard | Altug Celikbilek | 6-3 6-4 |
| 2016-06-13 | Turkey F24 | QF | hard | Altug Celikbilek | 6-4 6-2 |
| 2015-08-24 | Turkey F34 | QF | hard | Cem Ilkel | 3-6 7-5 7-6(5) |
| 2014-12-22 | Turkey F46 | R32 | hard | Cem Ilkel | 6-4 6-2 |
| 2014-02-24 | Turkey F5 | Q16 | hard | Cem Ilkel | 6-2 6-4 |
Averages over each player's completed matches in the selected window (200 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