Haluk Akkoyun defeated Baris Erguden 4-6 7-5 6-3 in the Turkey F3 round of 32 on hard. The upset overturned the form book — Baris Erguden came in leading the head-to-head 2–0, but Haluk Akkoyun had been the form player, winning 2 of their last 5 on hard. Haluk Akkoyun claimed a first win over Baris Erguden in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-06 | Turkey F18 | R32 | hard | Baris Erguden | 1-6 6-4 2-1 |
| 2012-01-16 | Turkey F2 | R32 | hard | Baris Erguden | 1-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.