Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/09/21 08:00 | Daisuke Sumizawa v Natthasith Kunsuwan | 6-2,3-6,7-10 |
| ITF M15 Ulcinj | 2021/09/15 13:15 | Daisuke Sumizawa v Juan Pablo Paz | 4-6,2-6 |
| ITF M15 Ulcinj | 2021/09/13 13:00 | Daisuke Sumizawa v Deney Wassermann | 6-4,7-6 |
| ITF M15 Ulcinj | 2021/09/13 08:00 | Daisuke Sumizawa v Nicolo Inserra | 6-4,6-0 |
| ITF M15 Ulcinj | 2021/09/09 12:15 | Daisuke Sumizawa v Bastian Malla | 6-4,1-6,0-6 |
| ITF M15 Ulcinj | 2021/09/06 13:00 | Daisuke Sumizawa v Alessandro Procopio | 6-2,6-2 |
| ITF M15 Ulcinj | 2021/09/06 07:30 | Daisuke Sumizawa v Eric Morris | 7-6,6-1 |
| ITF M15 Cairo | 2021/08/04 12:45 | Daisuke Sumizawa v Ignacio Monzon | 3-6,1-6 |
| ITF M15 Monastir | 2021/09/20 09:00 | Li Tu v Josh Reid | 6-0,6-0 |
| ITF M15 Monastir | 2021/09/19 08:00 | Josh Reid v Fabian Hansch Mauritzson | 6-1,3-6,10-3 |
| ITF M15 Monastir | 2021/09/13 08:00 | Paras Dahiya v Josh Reid | 6-4,7-5 |
| ITF M15 Monastir | 2021/09/12 08:00 | Josh Reid v Pranash Babu | 6-3,6-2 |
| ITF M15 Monastir | 2021/08/30 08:00 | Sergey Bolotov v Josh Reid | 6-2,6-0 |
| ITF M15 Monastir | 2021/08/22 10:00 | Takuya Kumasaka v Josh Reid | 7-6,6-3 |
| ITF M15 Monastir | 2021/08/08 10:30 | Josh Reid v Yuta Kawahashi | 3-6,1-6 |