Mikhail Korovin defeated Miguel Semmler 6-1 1-6 6-4 in the Spain F25 round of 32 on clay. The upset overturned the form book — Miguel Semmler came in leading the head-to-head 1–0, but Mikhail Korovin had been the form player, winning 3 of their last 9 on clay. Mikhail Korovin claimed a first win over Miguel Semmler in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-11-13 | Morocco F6 | R16 | clay | Miguel Semmler | 6-2 6-2 |
Averages over each player's completed matches in the selected window (1 vs 5). 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. Small sample — read as indicative. About