Estádio: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF - Tailândia F6 | 2018/10/06 05:30 | Daisuke Sumizawa v Kousuke Ogura | 6-3,6-2 |
| 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 |
| ITF - M15 Ulcinj | 2021/09/09 12:15 | Daisuke Sumizawa v Bastian Malla | 6-4,1-6,0-6 |
| ITF - M15 Monastir | 2021/09/29 10:20 | Kousuke Ogura v Ryotaro Matsumura | 6-1,1-6,6-2 |
| ITF - M15 Monastir | 2021/09/28 08:00 | Kousuke Ogura v Geni Inoue | 6-7,7-5,10-2 |
| ITF - M15 Monastir | 2021/09/27 08:00 | Kousuke Ogura v Tathagat Charantimath | 6-1,6-4 |
| ITF - M15 Monastir | 2021/09/21 08:00 | Kousuke Ogura v Riccardo Di Nocera | 5-7,1-6 |
| ITF - M15 Monastir | 2021/09/20 09:00 | Kousuke Ogura v Tushar Sharma | 6-1,6-1 |
| ITF - M15 Monastir | 2021/09/19 14:30 | Kousuke Ogura v Mohamed Amin Oueslati | 6-1,6-2 |
| ITF - M15 Monastir | 2021/09/15 14:00 | Kousuke Ogura v Axel Garcian | 4-6,1-6 |
| ITF - M15 Monastir | 2021/07/20 11:25 | Kousuke Ogura v Sascha Gueymard Wayenburg | 2-6,1-6 |