Muhammet Haylaz defeated Altug Celikbilek 6-1 6-4 in the Turkey F19 round of 16 on hard. The upset overturned the form book — Altug Celikbilek came in leading the head-to-head 3–0. Muhammet Haylaz claimed a first win over Altug Celikbilek in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-02-27 | Turkey F8 | R16 | hard | Altug Celikbilek | 2-6 7-6(5) 6-3 |
| 2016-10-31 | Turkey F44 | R16 | hard | Altug Celikbilek | 3-6 6-2 6-4 |
| 2015-08-17 | Turkey F33 | R32 | hard | Altug Celikbilek | 6-4 1-6 6-3 |
Averages over each player's completed matches in the selected window (38 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