Alexandar Lazov defeated Marc Sieber 6-2 5-7 6-3 in the Turkey F49 qualifying round on hard. The result followed the form book — Alexandar Lazov came in leading the head-to-head 2–0. Alexandar Lazov extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-01-09 | Turkey F1 | QF | hard | Alexandar Lazov | 5-0 |
| 2016-02-15 | Turkey F7 | R32 | hard | Alexandar Lazov | 4-6 6-3 6-1 |
Averages over each player's completed matches in the selected window (32 vs 69). 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