Stadium: Court 2 Round: 54 Ground: Clay
| Challenger Orleans | 2021/09/26 09:00 | Artem Dubrivnyy v Evgeny Karlovskiy | 2-6,6-7 |
| Challenger Istanbul | 2021/09/12 08:00 | Artem Dubrivnyy v Christopher Heyman | 3-6,2-6 |
| Challenger Liberec | 2021/08/02 09:30 | Alexander Ritschard v Artem Dubrivnyy | 6-2,6-2 |
| Challenger Liberec | 2021/08/01 15:10 | Artem Dubrivnyy v Kyrian Jacquet | 6-4,6-0 |
| Challenger Trieste | 2021/07/25 10:30 | Artem Dubrivnyy v Nerman Fatic | 2-6,1-6 |
| Challenger Nur-Sultan | 2021/07/20 07:20 | Artem Dubrivnyy v Peter Polansky | 5-7,6-7 |
| Challenger Nur-Sultan | 2021/07/19 04:00 | Artem Dubrivnyy v Vladyslav Manafov | 6-2,7-6 |
| Challenger Nur-Sultan Qual | 2021/07/18 06:35 | Artem Dubrivnyy v Timur Khabibulin | 6-2,6-4 |
| ITF M25 Eupen | 2021/09/05 09:45 | Dawid Taczala v Loic Cloes | 3-6,1-6 |
| ITF M25 Poznan | 2021/08/25 10:50 | Dawid Taczala v Borys Zgola | 3-6,6-7 |
| ITF M15 Lodz | 2021/08/16 09:30 | Taiyo Yamanaka v Dawid Taczala | 6-4,6-3 |
| ITF M15 Gdynia | 2021/08/08 08:30 | Dawid Taczala v Filip Pieczonka | 6-7,0-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 07:00 | Illya Beloborodko v Dawid Taczala | 6-1,6-2 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 16:00 | Piotr Matuszewski v Dawid Taczala | 1-6,6-4,7-10 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 12:30 | Alexander Wolfschmidt v Dawid Taczala | 0-6,5-7 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 13:25 | Dawid Taczala v Nikolas Lahky | 6-2,6-2 |