Stadium: Court 2 Round: 25 Ground: Clay
| Challenger - Praga 2 | 2020/08/22 08:30 | Marek Gengel v Martin Krumich | 6-7,6-1,7-6 |
| ITF - M25 Budapesta | 2021/10/01 10:00 | Martin Krumich v Mate Valkusz | 2-6,1-6 |
| ITF - M25 Budapesta | 2021/09/30 11:35 | Gergely Madarasz v Martin Krumich | 4-6,6-4,6-7 |
| ITF - M25 Budapesta | 2021/09/28 07:25 | Martin Krumich v Stepan Pecak | 6-2,6-3 |
| ITF - M25 Pardubice | 2021/09/22 10:20 | Martin Krumich v Maciej Rajski | 7-6,3-6,6-7 |
| ITF - M15 Sozopol | 2021/09/18 07:00 | Kai Wehnelt v Martin Krumich | 6-4,6-2 |
| ITF - M15 Sozopol | 2021/09/17 06:55 | Martin Krumich v Tommaso Compagnucci | 6-2,6-4 |
| ITF - M15 Sozopol | 2021/09/16 09:35 | Martin Krumich v Konstantin Zhzhenov | 6-2,6-4 |
| ITF - M15 Sozopol | 2021/09/14 09:00 | Martin Krumich v Valentin Vanta | 7-5,7-6 |
| Challenger - Orleans | 2021/09/26 12:50 | Maxime Janvier v Marek Gengel | 6-2,7-5 |
| Challenger - Biel | 2021/09/19 12:40 | Alexander Shevchenko v Marek Gengel | 6-3,6-3 |
| Challenger - Rennes | 2021/09/12 08:00 | Kenny de Schepper v Marek Gengel | 6-4,6-1 |
| Challenger - Tulln | 2021/09/05 10:25 | Mate Valkusz v Marek Gengel | 6-0,6-1 |
| ITF - M25 Ricany | 2021/09/03 08:25 | Marek Gengel v Yshai Oliel | 3-6,6-4,4-6 |
| ITF - M25 Ricany | 2021/09/02 07:55 | Filip Duda v Marek Gengel | 3-6,3-6 |
| ITF - M25 Ricany | 2021/09/01 09:05 | Marek Gengel v Daniel Siniakov | 7-5,6-3 |
| Challenger - Praga | 2021/08/22 08:00 | Marek Gengel v Alex Rybakov | 5-7,1-6 |