Stadium: Court 2 Round: 62 Ground: Clay
| ITF M25 Praha | 2021/05/09 07:30 | Pavel Nejedly v Piotr Matuszewski | 7-5,6-4 |
| ITF M15 Monastir | 2021/04/12 12:30 | Piotr Matuszewski v Sean Hodkin | 1-6,0-6 |
| ITF M15 Monastir | 2021/04/12 08:00 | Simon Yitbarek v Piotr Matuszewski | 1-6,2-6 |
| ITF M15 Monastir | 2021/04/11 10:00 | Jip Van Assendelft v Piotr Matuszewski | 5-7,4-6 |
| ITF M15 Monastir | 2021/04/05 09:00 | Igor Marcondes v Piotr Matuszewski | 7-6,6-3 |
| ITF M15 Monastir | 2021/04/04 10:30 | Miguel Fernando Pereira v Piotr Matuszewski | 3-6,3-6 |
| ITF M15 Sharm El Sheikh | 2021/02/07 11:00 | Piotr Matuszewski v Lorenzo Rottoli | 4-6,0-6 |
| ITF M15 Sharm El Sheikh | 2021/01/31 09:00 | Daisuke Sumizawa v Piotr Matuszewski | 4-6,6-1,10-8 |
| ITF M15 - Antalya | 2021/05/09 07:00 | Michal Novansky v Gerald Melzer | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/04/07 12:00 | Michal Novansky v Toby D. Boyer | 3-6,6-7 |
| ITF M15 Sharm El Sheikh | 2021/04/06 07:30 | Michal Novansky v Ioannis Xilas | 6-2,5-7,13-11 |
| ITF M15 Sharm El Sheikh | 2021/04/05 07:30 | Oleg Khotkov v Michal Novansky | 5-7,2-6 |
| ITF M15 Sharm El Sheikh | 2021/04/04 07:30 | Matej Galik v Michal Novansky | 6-7,7-6,4-10 |
| ITF M15 Sharm El Sheikh | 2021/03/28 14:30 | Issei Okamura v Michal Novansky | 6-1,6-1 |
| ITF M15 Bratislava | 2021/03/10 13:30 | Gabriel Petit v Michal Novansky | 6-2,7-5 |
| ITF M15 Bratislava | 2021/03/03 11:20 | Baptiste Crepatte v Michal Novansky | 3-6,6-2,6-2 |