Louis Wessels defeated Peter Heller 6-3 6-2 in the Koblenz CH round of 64 on hard. The upset overturned the form book — Peter Heller came in leading the head-to-head 1–0. Louis Wessels claimed a first win over Peter Heller in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-25 | M15 Ueberlingen 1 | F | clay | Peter Heller | 6-1 6-4 |
Averages over each player's completed matches in the selected window (200 vs 200). 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