Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/02/02 10:50 | Daisuke Sumizawa v Nitin Kumar Sinha | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2021/02/01 12:30 | Jumpei Yamasaki v Daisuke Sumizawa | 6-4,1-6,8-10 |
| 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 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 |
| Czechia Extraliga | 2020/12/12 11:00 | Jan Satral v Lukas Rosol | 5-7,5-7 |
| ITF M25 Pardubice | 2020/10/04 08:00 | Jan Satral v Uladzimir Ignatik | 3-6,2-6 |
| ITF M25 Pardubice | 2020/10/03 11:50 | Jan Satral v Lukas Klein | 7-6,6-4 |
| ITF M25 Pardubice | 2020/10/02 13:05 | Jiri Lehecka v Jan Satral | 2-6,3-6 |
| ITF M25 Pardubice | 2020/10/01 12:20 | Jan Satral v Rayane Roumane | 6-1,6-1 |
| ITF M25 Pardubice | 2020/09/30 09:30 | Jan Satral v Camilo Ugo Carabelli | 4-6,6-4,10-2 |
| ITF M25 Jablonec Nad Nisou | 2020/09/22 11:25 | Jan Satral v Christian Lindell | 6-7,7-5,2-6 |
| ITF M25 Prague | 2020/09/15 10:50 | Jan Satral v Christian Lindell | 6-3,6-7,2-6 |