Julian Onken defeated Lukas Marsoun 7-5 6-4 in the Germany F11 round of 32 on clay. The result followed the form book — Julian Onken came in leading the head-to-head 1–0. Julian Onken extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-10 | Germany F11 | Q16 | clay | Julian Onken | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.