Cem Ilkel defeated Marc Sieber 6-3 7-6 in the Turkey F7 round of 32 on hard. The result followed the form book — Cem Ilkel came in leading the head-to-head 2–1. Cem Ilkel extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-01-23 | Turkey F3 | QF | hard | Cem Ilkel | 7-6(2) 6-4 |
| 2016-04-11 | Turkey F15 | F | hard | Marc Sieber | 2-6 6-4 6-4 |
| 2016-03-28 | Turkey F13 | SF | hard | Cem Ilkel | 1-6 6-3 6-2 |
Averages over each player's completed matches in the selected window (200 vs 57). 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