Stadium: MTA 3 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/05/02 06:00 | Orlando Luz v Daisuke Sumizawa | 6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/03 09:25 | Daisuke Sumizawa v Luca Nardi | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/03/02 09:20 | Arvid Nordquist v Daisuke Sumizawa | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/03/01 10:00 | Matas Vasiliauskas v Daisuke Sumizawa | 0-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/02/28 11:00 | Alberto Morolli v Daisuke Sumizawa | 3-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/02/23 07:30 | Lukas Krainer v Daisuke Sumizawa | 3-6,6-3,10-5 |
| ITF M15 Sharm El Sheikh | 2021/02/22 07:30 | Jose Pereira v Daisuke Sumizawa | 6-7,7-6,8-10 |
| ITF M15 Sharm El Sheikh | 2021/02/21 06:30 | Noel Larwig v Daisuke Sumizawa | 3-6,2-6 |
| ITF M15 Cordoba | 2021/04/07 13:30 | Valerio Aboian v Ignacio Carou | 6-2,6-0 |
| ITF M15 Villa Maria | 2021/03/31 17:15 | Ignacio Carou v Nicolas Kicker | 0-6,2-6 |
| ITF M15 Villa Maria | 2021/03/30 12:30 | Ignacio Carou v Lautaro Agustin Falabella | 3-6,4-6 |
| ITF M15 Villa Maria | 2021/03/29 12:30 | Ignacio Carou v Paulo A S Dos Santos | 6-0,6-1 |
| ITF M15 Villa Maria | 2021/03/28 12:00 | Ignacio Carou v Mateo Berta | 6-1,7-5 |
| ITF M15 Rovinj | 2021/03/15 09:30 | Mile Matic v Ignacio Carou | 7-6,4-6,10-8 |
| ITF M15 Porec | 2021/03/08 13:00 | Philipp Schroll v Ignacio Carou | 6-2,3-6,10-5 |
| ITF M15 Porec | 2021/03/07 13:00 | Tommaso Compagnucci v Ignacio Carou | 7-6,4-6,7-10 |