Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Nonthaburi | 2020/02/02 03:40 | Yuki Mochizuki v Keisuke Saitoh | 6-3,6-0 |
| ITF M25 Nonthaburi | 2020/01/27 04:25 | Ben Patael v Keisuke Saitoh | 6-3,6-2 |
| ITF M25 Nonthaburi | 2020/01/26 03:55 | Thanapet Chanta v Keisuke Saitoh | 4-6,6-2,8-10 |
| ITF M15 Nonthaburi | 2019/12/03 05:30 | Keisuke Saitoh v Makoto Ochi | 2-6,2-6 |
| ITF M15 Nonthaburi | 2019/11/29 03:00 | Duckhee Lee v Keisuke Saitoh | 6-2,6-1 |
| ITF M15 Nonthaburi | 2019/11/28 02:30 | Keisuke Saitoh v Rio Noguchi | 7-5,7-6 |
| ITF M15 Nonthaburi | 2019/11/27 02:30 | Keisuke Saitoh v Ryota Tanuma | 6-2,7-6 |
| ITF M15 Akishima | 2019/06/14 03:15 | Rio Noguchi v Keisuke Saitoh | 6-1,6-1 |
| ITF M15 Novomoskovsk | 2020/08/31 14:30 | Anatoliy Petrenko v Denis Parshutin | 6-2,6-0 |
| ITF M15 Novomoskovsk | 2020/08/31 09:00 | Mykyta Rassolov v Denis Parshutin | 3-6,2-6 |
| ITF M15 Novomoskovsk | 2020/08/30 12:00 | Nikita Starkov v Denis Parshutin | 6-7,3-6 |
| ITF M15 Sharm El Sheikh | 2020/02/16 10:00 | Seita Watanabe v Denis Parshutin | 6-2,6-0 |
| ITF M15 Sharm El Sheikh | 2020/02/09 08:00 | Daniil Glinka v Denis Parshutin | 6-2,6-2 |
| ITF M15 Heraklion | 2019/11/17 07:30 | Denis Parshutin v Jack Gibbens | 2-6,4-6 |
| ITF M15 Heraklion | 2019/11/11 08:00 | Adrian Bodmer v Denis Parshutin | 6-1,6-0 |
| ITF M15 Heraklion | 2019/11/10 07:30 | Denis Parshutin v Gilad Tamar | 6-3,7-6 |