Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Cairo | 2021/01/26 09:30 | Gonzalo Lama v Daisuke Sumizawa | 6-3,6-1 |
| ITF M15 Cairo | 2021/01/25 08:00 | Mikel Aranzabal v Daisuke Sumizawa | 3-6,4-6 |
| ITF M15 Cairo | 2021/01/24 07:30 | Omar Magdy Ezzeldin v Daisuke Sumizawa | 0-6,0-6 |
| ITF M15 Cairo | 2021/01/17 07:00 | Alec Beckley v Daisuke Sumizawa | 6-2,7-5 |
| ITF M15 Sharm El Sheikh | 2020/11/08 12:30 | Ivan Sergeyev v Daisuke Sumizawa | 7-6,1-6,11-9 |
| ITF M15 Sharm El Sheikh | 2020/11/02 08:00 | Daisuke Sumizawa v Max Houkes | 3-6,6-7 |
| ITF M15 Sharm El Sheikh | 2020/11/01 09:30 | Amr Asrawy v Daisuke Sumizawa | 6-1,1-6,6-10 |
| ITF M25 Geelong | 2020/03/11 04:45 | Thomas Braithwaite v Daisuke Sumizawa | 6-0,6-3 |
| 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 |
| ITF M15 Cairo | 2021/01/18 08:00 | Piotr Matuszewski v Rimpei Kawakami | 7-6,6-3 |
| ITF M15 Cairo | 2021/01/17 10:30 | Abdalla Genidy v Piotr Matuszewski | 0-6,3-6 |
| ITF M15 Cairo | 2021/01/11 13:00 | Juan Bautista Otegui v Piotr Matuszewski | 6-4,6-4 |
| ITF M15 Cairo | 2021/01/11 09:00 | Faisal Qamar v Piotr Matuszewski | 1-6,0-6 |