Stadium: Court 2 Round: 62 Ground: Clay
| ITF - M15 Cairo | 2021/07/25 07:00 | Daisuke Sumizawa v Atharva Sharma | 6-1,6-1 |
| ITF - M15 Cairo | 2021/07/22 08:00 | Daisuke Sumizawa v Lorenzo Bocchi | 0-6,2-6 |
| ITF - M15 Cairo | 2021/07/21 08:00 | Sergei Pogosian v Daisuke Sumizawa | 2-6,4-6 |
| ITF - M15 Antalya | 2021/06/03 07:30 | Pietro Rondoni v Daisuke Sumizawa | 6-3,6-2 |
| ITF - M15 Antalya | 2021/06/02 09:20 | Daisuke Sumizawa v Santiago De La Fuente | 5-7,7-5,7-5 |
| ITF - M15 Antalya | 2021/06/01 07:00 | Daisuke Sumizawa v Nicolas Parizzia | 4-6,6-1,6-10 |
| ITF - M15 Antalya | 2021/05/31 07:30 | Daisuke Sumizawa v Bora Sengul | 6-1,7-6 |
| ITF - M15 Antalya | 2021/05/23 07:30 | Daisuke Sumizawa v Miguel Fernando Pereira | 4-6,1-6 |
| ITF - M15 Cairo | 2021/07/25 07:00 | Ilya Rudiukov v Matteo De Vincentis | 2-6,6-4,4-10 |
| ITF - M15 Sofia | 2021/07/05 07:00 | Matvey Minin v Matteo De Vincentis | 1-6,5-7 |
| ITF - M15 Sofia | 2021/07/04 06:30 | Matteo De Vincentis v Valentin Vanta | 6-4,6-0 |
| ITF - M15 Heraklion | 2021/06/08 08:00 | Matteo De Vincentis v Yaron Guberman | 4-6,5-7 |
| ITF - M15 Heraklion | 2021/06/07 07:30 | Joshua Paris v Matteo De Vincentis | 5-7,1-6 |
| ITF - M15 Heraklion | 2021/06/06 09:00 | Vasilios Caripi v Matteo De Vincentis | 2-6,2-6 |
| ITF - M15 Heraklion | 2021/06/02 13:50 | Nicolas Alvarez Varona v Matteo De Vincentis | 6-4,6-2 |
| ITF - M15 Heraklion | 2021/06/01 06:30 | Toby D. Boyer v Matteo De Vincentis | 2-6,3-6 |