| ITF M25 Ceska Lipa | 2025/06/12 09:30 | Jan Kumstat v Martin Krumich | 6-2,3-6,3-5 |
| Challenger Tampere | 2025/07/20 12:25 | Sebastian Dominko v Martin Krumich | 6-1,6-4 |
| Challenger Bunschoten | 2025/07/15 14:05 | Martin Krumich v Dimitar Kuzmanov | 3-6,6-3,3-6 |
| Challenger Bunschoten | 2025/07/14 09:00 | Martin Krumich v Tom Gentzsch | 6-4,6-2 |
| Challenger Bunschoten | 2025/07/13 11:15 | Stefano Travaglia v Martin Krumich | 4-6,2-6 |
| ITF M25 Kassel | 2025/07/09 09:00 | Martin Krumich v Daniel Siniakov | 3-6,6-4,4-6 |
| Challenger Modena | 2025/06/29 10:00 | Martin Krumich v Stefanos Sakellaridis | 7-6,3-6,3-6 |
| Challenger Poznan | 2025/06/19 11:45 | Cristian Garin v Martin Krumich | 6-2,6-0 |
| Challenger Poznan | 2025/06/18 15:35 | Maxim Mrva v Martin Krumich | 5-7,7-6,1-6 |
| ITF M15 Segrate | 2025/07/25 10:30 | Lilian Marmousez v Jan Kumstat | 5-7,6-7 |
| ITF M15 Segrate | 2025/07/24 11:35 | Jan Kumstat v Gianmarco Ferrari | 6-3,5-4 |
| ITF M15 Segrate | 2025/07/23 16:37 | Jan Kumstat v Fausto Tabacco | 7-6,5-7,6-4 |
| ITF M25 Ceska Lipa | 2025/06/12 09:30 | Jan Kumstat v Martin Krumich | 6-2,3-6,3-5 |
| ITF M25 Ceska Lipa | 2025/06/10 10:23 | Jan Kumstat v Vladyslav Orlov | 7-6,6-2 |
| ITF M15 Szentendre | 2025/05/16 09:00 | Dominik Kellovsky v Jan Kumstat | 6-3,3-6,6-1 |
| ITF M15 Szentendre | 2025/05/15 08:00 | Jan Kumstat v Attila Dominik Boros | 6-4,7-5 |
| ITF M15 Szentendre | 2025/05/14 08:00 | Bruno Fernandez v Jan Kumstat | 4-6,6-7 |