Gianluigi Quinzi defeated Marc Sieber 3-6 6-3 6-3 in the Turkey F1 final on hard. The upset overturned the form book — Marc Sieber came in leading the head-to-head 1–0. Gianluigi Quinzi claimed a first win over Marc Sieber in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-01-15 | Turkey F2 | QF | hard | Marc Sieber | 7-5 6-4 |
Averages over each player's completed matches in the selected window (120 vs 27). 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