Milos Karol defeated Peter Heller 0-6 7-5 6-3 in the M15 Vienna 1 quarter-final on clay. The upset overturned the form book — Peter Heller came in leading the head-to-head 1–0. Milos Karol claimed a first win over Peter Heller in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-03 | M15 Vienna 1 | F | clay | Peter Heller | 7-6(7) 6-2 |
Averages over each player's completed matches in the selected window (86 vs 9). 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