Peter Heller defeated Paul Woerner 6-2 6-1 in the M15 Kamen 1 round of 16 on clay. The upset overturned the form book — Paul Woerner came in leading the head-to-head 1–0. Peter Heller claimed a first win over Paul Woerner in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-04-16 | Turkey F15 | R16 | clay | Paul Woerner | 4-6 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.