Kalle Averfalk defeated Barkin Yalcinkale 6-3 6-3 in the Turkey F15 q64 on hard. The upset overturned the form book — Barkin Yalcinkale came in leading the head-to-head 1–0. Kalle Averfalk claimed a first win over Barkin Yalcinkale in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-22 | Turkey F16 | Q16 | hard | Barkin Yalcinkale | 4-6 6-0 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.