Stadium: Court 4 Round: 62 Ground: Clay
| ITF - M15 Opatija | 2021/03/26 09:00 | Corentin Denolly v Pavel Nejedly | 6-3,2-6,6-1 |
| ITF - M15 Opatija | 2021/03/25 10:55 | Martin Damm v Pavel Nejedly | 3-6,5-7 |
| ITF - M15 Opatija | 2021/03/24 12:45 | Matic Spec v Pavel Nejedly | 6-1,5-7,3-6 |
| ITF - M15 Rovinj | 2021/03/19 09:25 | Corentin Denolly v Pavel Nejedly | 3-6,6-4,6-3 |
| ITF - M15 Rovinj | 2021/03/18 09:00 | Pavel Nejedly v Antoine Cornut-Chauvinc | 7-6,6-3 |
| ITF - M15 Rovinj | 2021/03/16 13:00 | Dino Prizmic v Pavel Nejedly | 4-6,4-6 |
| ITF - M15 Porec | 2021/03/12 09:00 | Filip Misolic v Pavel Nejedly | 6-4,6-4 |
| ITF - M15 Porec | 2021/03/11 09:00 | Clement Tabur v Pavel Nejedly | 7-5,3-6,5-7 |
| 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 Cairo | 2021/01/26 08:00 | Naoki Tajima v Piotr Matuszewski | 6-4,6-4 |