Robin Stanek defeated Valentin Guenther 6-1 7-6 in the M15 Marburg 1 round of 16 on clay. The result followed the form book — Robin Stanek came in leading the head-to-head 1–0. Robin Stanek extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-05-08 | Turkey F18 | R16 | clay | Robin Stanek | 6-4 7-6(8) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.