Stadium: Court 1 Round: 44 Ground: Clay
| ITF M15 Bratislava | 2021/03/10 12:05 | Jan Satral v Lenny Hampel | 6-4,6-3 |
| ITF M15 Bratislava | 2021/03/02 12:00 | Lenny Hampel v Patrik Rikl | 3-6,7-6,2-6 |
| ITF M15 Cairo | 2021/01/30 10:40 | Lenny Hampel v Gonzalo Lama | 1-6,6-7 |
| ITF M15 Cairo | 2021/01/29 09:10 | Lenny Hampel v Daniele Capecchi | 6-2,6-1 |
| ITF M15 Cairo | 2021/01/28 10:30 | Lenny Hampel v Naoki Tajima | 6-1,6-4 |
| ITF M15 Cairo | 2021/01/19 08:00 | Lenny Hampel v Lorenzo Bocchi | 2-6,1-6 |
| ITF M15 Cairo | 2021/01/17 10:00 | Lenny Hampel v Taha Kapadia | 6-1,6-3 |
| ITF M25 Hamburg | 2020/10/21 13:25 | Lenny Hampel v Manuel Guinard | 3-6,3-6 |
| ITF M15 Bratislava | 2021/03/11 11:10 | Fabian Marozsan v Martin Krumich | 7-5,6-3 |
| ITF M15 Bratislava | 2021/03/10 14:40 | Stepan Pecak v Martin Krumich | 7-6,5-7,1-6 |
| ITF M15 Bratislava | 2021/03/03 09:00 | Mikalai Haliak v Martin Krumich | 6-3,2-6,6-2 |
| ITF M15 St Petersburg | 2021/02/12 10:00 | Martin Krumich v Andrey Kuznetsov | 2-6,6-7 |
| ITF M15 St Petersburg | 2021/02/11 08:30 | Artem Dubrivnyy v Martin Krumich | 4-6,6-1,5-7 |
| ITF M15 St Petersburg | 2021/02/09 10:00 | Luigi Sorrentino v Martin Krumich | 2-6,6-7 |
| ITF M15 St Petersburg | 2021/02/05 08:30 | Alexey Zakharov v Martin Krumich | 7-5,6-1 |
| ITF M15 St Petersburg | 2021/02/04 06:55 | Martin Krumich v Artem Dubrivnyy | 6-7,6-2,6-3 |