Stadium: Court 7 Round: 25 Ground: Clay
| ITF M15 Ulcinj | 2021/09/23 09:30 | Matija Samardzic v Alexis Musialek | 1-6,0-6 |
| ITF M15 Ulcinj | 2021/09/21 09:25 | Bogdan Bajic v Matija Samardzic | 1-6,6-4,2-6 |
| ITF M15 Monastir | 2021/09/30 08:00 | Daisuke Sumizawa v Kousuke Ogura | 2-6,6-3,2-6 |
| ITF M15 Monastir | 2021/09/29 10:40 | Wojciech Marek v Daisuke Sumizawa | 3-6,4-6 |
| ITF M15 Monastir | 2021/09/28 08:00 | Daisuke Sumizawa v Taketo Takamisawa | 6-1,6-1 |
| ITF M15 Monastir | 2021/09/27 08:00 | Daisuke Sumizawa v Josh Reid | 3-6,6-1,10-7 |
| 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 |