Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/04/05 09:00 | Jip Van Assendelft v Romain Faucon | 3-6,6-1,7-10 |
| ITF M15 Monastir | 2021/04/04 10:30 | Justin Roberts v Jip Van Assendelft | 1-6,3-6 |
| ITF M25 Trimbach | 2021/03/08 13:35 | Patrik Hartmeier v Jip Van Assendelft | 7-5,7-5 |
| ITF M15 Monastir | 2021/02/21 10:00 | Facundo Yunis v Jip Van Assendelft | 6-2,6-4 |
| ITF M15 Monastir | 2021/02/07 13:30 | Jip Van Assendelft v Pierre Faivre | 5-7,2-6 |
| ITF M15 Monastir | 2021/02/01 08:30 | Valentin Lapalu v Jip Van Assendelft | 0-6,6-4,10-3 |
| ITF M15 Monastir | 2021/01/31 11:00 | Jip Van Assendelft v Mhamed Affes | 6-0,6-3 |
| 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 |
| ITF M15 Cairo | 2021/01/26 08:00 | Naoki Tajima v Piotr Matuszewski | 6-4,6-4 |
| ITF M15 Cairo | 2021/01/25 08:00 | Piotr Matuszewski v Aryan Goveas | 7-6,6-2 |
| ITF M15 Cairo | 2021/01/19 08:00 | Franco Agamenone v Piotr Matuszewski | 6-2,6-1 |