Jonathan Gray defeated Muhammet Haylaz 6-4 6-1 in the Turkey F1 round of 32 on hard. The upset overturned the form book — Muhammet Haylaz came in leading the head-to-head 1–0. Jonathan Gray claimed a first win over Muhammet Haylaz in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-06-08 | Turkey F23 | R32 | hard | Muhammet Haylaz | 7-6(5) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.