Dominik Kellovsky defeated Marek Semjan 4-6 6-3 6-2 in the Qatar F2 round of 32 on hard. The result followed the form book — Dominik Kellovsky came in leading the head-to-head 3–0. Dominik Kellovsky extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-11-20 | Czech Republic F11 | R32 | hard | Dominik Kellovsky | 6-3 7-6(7) |
| 2016-08-08 | Slovakia F3 | R32 | clay | Dominik Kellovsky | 4-6 6-4 7-6(3) |
| 2016-07-25 | Slovakia F1 | R32 | clay | Dominik Kellovsky | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.