Level, 1 wins each over 2 singles meetings since 2025. Last meeting on 20/08/2026 at Prague Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 20/08/2026 | Prague Challenger | Quarter-final | clay | Kumstat | 1-6 5-7 |
| 15/04/2025 | M15 Antalya | Round 1 | clay | Mrva | 6-3 6-1 |
| clay | Kumstat 1 - 1 Mrva |
| 2026 | Kumstat 1 - 0 Mrva |
| 2025 | Kumstat 0 - 1 Mrva |
74 wins, 47 losses since 2021 (61.2%).
Last matches: D D V D V
94 wins, 73 losses since 2021 (56.3%).
Last matches: D V D V V
Level, 1 wins each over 2 singles meetings since 2025.
On 20/08/2026, at Prague Challenger (Quarter-final): Jan Kumstat won 1-6 5-7.