| ITF Turkey F11 | 03/17 08:30 | 62 | Samuel Bothwell v Daisuke Sumizawa | 0-6,4-6 | |
| ITF Turkey F10 | 03/10 08:30 | 62 | Gabriel Donev v Daisuke Sumizawa | 6-3,6-3 | |
| ITF Turkey F9 | 03/04 08:30 | 62 | Daisuke Sumizawa v Neven Krivokuca | 1-6,2-6 | |
| ITF Turkey F9 | 03/03 07:00 | 62 | Daisuke Sumizawa v Nutdanai Sincharoenwattana | 6-1,7-6 | |
| ITF Turkey F8 | 02/25 07:30 | 62 | Bogdan Ionut Apostol v Daisuke Sumizawa | 7-6,6-7,6-0 | |
| ITF Turkey F8 | 02/24 07:00 | 62 | Daisuke Sumizawa v Vicente O Moratalla | 6-7,7-5,6-2 | |
| ITF Turkey F7 | 02/17 06:30 | 62 | Daisuke Sumizawa v Calin Manda | 2-6,0-6 | |
| ITF Turkey F6 | 02/11 06:00 | 62 | Collin Altamirano v Daisuke Sumizawa | 6-0,6-1 | |
| ITF Turkey F6 | 02/10 06:00 | 62 | Daisuke Sumizawa v Alexandru Vasile Manole | 1-6,6-3,6-4 | |
| ITF Turkey F5 | 02/04 07:30 | 44 | Antun Vidak v Daisuke Sumizawa | 7-5,6-1 | |
| ITF Egypt F20 | 11/23 15:10 | 26 | Olexiy Kolisnyk v Daisuke Sumizawa | 6-4,6-3 | |
| ITF Egypt F35 | 11/22 17:20 | 25 | Daisuke Sumizawa v Washi Gervais | 6-4,6-1 | |
| ITF Egypt F20 | 11/20 13:30 | 44 | Yacoub Makzoume v Daisuke Sumizawa | 3-6,4-6 | |
| ITF Egypt F34 | 11/13 13:30 | 62 | Vladyslav Orlov v Daisuke Sumizawa | 6-3,7-5 | |
| ITF Egypt F34 | 11/12 08:00 | 62 | Klemen Nikolas v Daisuke Sumizawa | 0-6,5-7 | |
| ITF Egypt F34 | 11/11 08:00 | 62 | Daisuke Sumizawa v Anton Desyatnik | 6-2,6-3 | |
| ITF Egypt F33 | 11/04 08:00 | 62 | Gregorio Cordonnier v Daisuke Sumizawa | 6-3,6-4 | |
| ITF Malaysia F3 | 10/29 00:00 | 62 | Daisuke Sumizawa v Rio Noguchi | 3-6,6-7 | |
| ITF Malaysia F2 | 10/23 01:00 | 62 | Tyler Lu v Daisuke Sumizawa | 6-1,6-4 | |
| ITF Malaysia F2 | 10/22 03:00 | 62 | Daisuke Sumizawa v Sam Matheson | 6-4,6-2 | |
| ITF Malaysia F1 | 10/16 01:00 | 44 | Suraj R Prabodh v Daisuke Sumizawa | 6-1,6-3 | |
| ITF Malaysia F1 | 10/15 01:00 | 44 | Daisuke Sumizawa v Francis Pare | 6-0,6-3 | |
| ITF Romania F12 | 08/27 10:30 | 62 | Alexandru Vasile Manole v Daisuke Sumizawa | 6-0,6-3 | |
| ITF Romania F11 Qual | 08/19 15:00 | 62 | Sorin Andrei Iordache v Daisuke Sumizawa | 6-0,6-1 | |
| ITF China F12 Qual | 07/09 02:00 | 62 | Daisuke Sumizawa v Huixin Wang | 1-6,1-6 | |
| ITF China F12 Qual | 07/08 05:00 | 62 | Yili Zheng v Daisuke Sumizawa | 2-6,2-6 | |
| ITF China F11 Qual | 07/03 02:15 | 62 | Runhao Hua v Daisuke Sumizawa | 6-1,4-6,6-1 | |
| ITF China F11 Qual | 07/02 09:15 | 62 | Daisuke Sumizawa v Zhao Cai | 6-2,7-6 | |
| ITF China F11 Qual | 07/01 08:45 | 62 | Daisuke Sumizawa v Leo Tang | 6-1,6-1 | |
| ITF Guam F1 | 06/19 01:15 | 25 | Connor Farren v Daisuke Sumizawa | 7-5,6-1 |