Stadium: Court 2 Round: 62 Ground: Clay
| 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 |
| ITF M15 Cairo | 2021/01/10 14:00 | Piotr Matuszewski v Grigoriy Lomakin | 6-3,6-1 |
| ITF M15 Cairo | 2021/01/06 11:35 | Nicholas David Ionel v Piotr Matuszewski | 6-4,6-4 |
| ITF M15 Cairo | 2021/01/04 12:00 | Francesco Passaro v Piotr Matuszewski | 6-7,7-5,6-10 |
| ITF M15 Cairo | 2021/01/03 09:00 | Yash Chaurasia v Piotr Matuszewski | 3-6,7-5,8-10 |
| ITF M25 Jablonec Nad Nisou | 2020/09/22 08:00 | Piotr Matuszewski v Francisco Comesana | 3-6,3-6 |
| ITF M15 Cairo | 2021/01/17 08:00 | Rimpei Kawakami v Taisei Ichikawa | 2-6,6-2,10-6 |
| ITF M25 Nonthaburi | 2020/01/27 02:30 | Sidharth Rawat v Rimpei Kawakami | 4-6,6-4,10-8 |
| ITF M25 Nonthaburi | 2020/01/26 02:30 | Kazuki Nishiwaki v Rimpei Kawakami | 6-7,2-6 |
| ITF M15 Monastir | 2019/11/22 10:40 | Clement Geens v Rimpei Kawakami | 6-2,6-3 |
| ITF M15 Monastir | 2019/11/21 12:10 | Diego F Flores v Rimpei Kawakami | 4-6,1-6 |
| ITF M15 Monastir | 2019/11/19 08:30 | Rimpei Kawakami v Lorenzo Bocchi | 6-1,6-0 |
| ITF M15 Monastir | 2019/11/13 13:45 | Rimpei Kawakami v Ivan Davydov | 6-4,3-6,4-6 |
| ITF M15 Monastir | 2019/11/05 08:30 | Rimpei Kawakami v Gianluigi Quinzi | 2-6,2-6 |