Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Nonthaburi | 2019/07/23 03:45 | Daisuke Sumizawa v Krittin Koaykul | 6-4,1-6,11-9 |
| ITF M25 Nonthaburi | 2019/07/22 08:50 | Daisuke Sumizawa v Saranpong Borisutpong | 6-2,6-4 |
| ITF M25 Qujing | 2019/07/11 03:20 | Rio Noguchi v Daisuke Sumizawa | 6-3,6-0 |
| ITF M25 Qujing | 2019/07/09 04:30 | Zhuoyang Qiu v Daisuke Sumizawa | 1-6,0-6 |
| ITF M25 Kunshan | 2019/07/04 03:10 | Daisuke Sumizawa v Haitong Xia | 3-6,6-4,3-6 |
| ITF M25 Kunshan | 2019/07/02 10:35 | Pol Wattanakul v Daisuke Sumizawa | 1-6,6-2,3-6 |
| ITF M15 Anseong | 2019/06/25 02:45 | Uisung Park v Daisuke Sumizawa | 6-4,3-6,6-2 |
| ITF M15 Gimcheon | 2019/06/19 01:00 | Oh-Hee Kwon v Daisuke Sumizawa | 4-6,7-6,6-3 |
| Challenger Nur-Sultan | 2019/07/15 10:25 | Alafia Ayeni v Sergey Fomin | 6-4,6-4 |
| Challenger Fergana | 2019/06/17 10:20 | Alexander Zhurbin v Sergey Fomin | 5-7,6-4,6-2 |
| Challenger Shymkent 2 | 2019/06/10 11:00 | Sergey Fomin v Alexandre Muller | 2-6,6-2,6-7 |
| Challenger Jerusalem | 2019/05/20 11:05 | Sergey Fomin v Brydan Klein | 1-6,6-7 |
| Challenger Samarkand | 2019/05/15 05:30 | Sergey Fomin v Roberto Ortega-Olmedo | 4-6,3-6 |
| Challenger Samarkand | 2019/05/13 05:00 | Khumoyun Sultanov v Sergey Fomin | 6-7,6-3,2-6 |
| Challenger Shymkent | 2019/05/06 11:05 | Karim-Mohamed Maamoun v Sergey Fomin | 6-1,6-7,6-0 |
| ITF M25 Namangan | 2019/05/02 08:30 | Timofey Skatov v Sergey Fomin | 4-6,6-0,6-1 |