Dimitar Kuzmanov defeated Marc Sieber 2-6 7-5 7-5 in the Turkey F3 qualifying round on hard. The result followed the form book — Dimitar Kuzmanov came in leading the head-to-head 4–1. Dimitar Kuzmanov extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-01-15 | Turkey F2 | SF | hard | Dimitar Kuzmanov | 6-1 4-6 7-5 |
| 2017-06-19 | Turkey F24 | F | clay | Dimitar Kuzmanov | 6-3 2-6 6-1 |
| 2017-04-17 | Turkey F15 | R16 | clay | Dimitar Kuzmanov | 4-6 6-4 6-2 |
| 2015-03-16 | Turkey F11 | SF | hard | Marc Sieber | 2-6 6-4 6-0 |
| 2015-02-16 | Turkey F7 | F | hard | Dimitar Kuzmanov | 7-5 6-3 |
Averages over each player's completed matches in the selected window (197 vs 27). ATP, WTA & Challenger.
Kuzmanov D.: 1 day rest · 3 matches, 48 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About