Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Říčany | 2021/09/02 10:45 | Orlando Luz v Martin Krumich | 6-7,6-1,6-2 |
| ITF M25 Říčany | 2021/09/01 09:20 | Jiri Barnat v Martin Krumich | 2-6,3-6 |
| Challenger - Praha | 2021/08/23 11:20 | Michael Geerts v Martin Krumich | 6-2,6-4 |
| ITF M25 Prostějov | 2021/08/18 08:00 | Martin Krumich v Nikolas Sanchez Izquierdo | 0-6,2-6 |
| ITF M25 Prostějov | 2021/08/17 09:15 | Martin Krumich v Daniel Siniakov | 3-6,6-4,7-5 |
| Challenger - Praha | 2021/08/09 12:30 | Evan Furness v Martin Krumich | 4-6,6-4,6-3 |
| Challenger - Liberec | 2021/08/01 12:30 | Evan Furness v Martin Krumich | 6-3,6-2 |
| ITF M25 Kottingbrunn | 2021/07/22 10:10 | Pavel Nejedly v Martin Krumich | 6-3,4-6,6-2 |
| UTR Pro Tennis Series Sofia | 2021/09/02 08:30 | Alexandar Lazarov v Valentin Vanta | 6-4,3-6,5-3 |
| UTR Pro Tennis Series Sofia | 2021/09/01 06:30 | Valentin Vanta v Warren Sinius | 6-1,5-0 |
| UTR Pro Tennis Series Sofia | 2021/08/31 09:30 | Valentin Vanta v George Lazarov | 6-4,6-0 |
| UTR Pro Tennis Series Sofia | 2021/08/30 13:30 | Valentin Vanta v Volodymyr Uzhylovskyi | 6-2,6-3 |
| ITF M25 Bacău | 2021/08/17 07:00 | Toby Martin v Valentin Vanta | 6-7,6-2,12-10 |
| ITF M25 Bacău | 2021/08/16 15:00 | Dan Radu Munteanu v Valentin Vanta | 2-6,4-6 |
| ITF M15 Curtea de Argeș | 2021/08/08 08:00 | Valentin Vanta v Stefan Palosi | 1-6,3-6 |
| ITF M25 Pitești | 2021/08/02 06:00 | Valentin Vanta v Edris Fetisleam | 1-6,4-6 |