Tobias Kamke defeated Marius Copil 6-2 6-4 in the Istanbul CH quarter-final on hard. The upset overturned the form book — Marius Copil came in leading the head-to-head 2–0, defending last year's quarter-final. Tobias Kamke claimed a first win over Marius Copil in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-02-13 | Rotterdam | Q1 | hard | Marius Copil | 6-7(1) 7-6(3) 6-1 |
| 2012-04-23 | Bucharest | R32 | clay | Marius Copil | 6-3 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.