Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Taipei | 2019/07/23 02:00 | Taisei Ichikawa v Seita Watanabe | 5-7,4-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/29 05:25 | Taisei Ichikawa v Orel Kimhi | 3-6,7-6,4-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/27 02:00 | Taisei Ichikawa v Siwanat Auytayakul | 6-2,6-3 |
| ITF M15 Nakhon Si Thammarat | 2024/02/22 02:00 | Yan Bai v Taisei Ichikawa | 6-3,6-2 |
| ITF M15 Nakhon Si Thammarat | 2024/02/21 04:10 | Taisei Ichikawa v Tao Mu | 6-7,6-3,7-5 |
| Challenger Burnie | 2024/02/06 00:45 | Taisei Ichikawa v Christian Langmo | 6-7,4-6 |
| Challenger Burnie | 2024/02/05 00:50 | Taisei Ichikawa v Thomas Braithwaite | 7-6,6-3 |
| Challenger Burnie Qual | 2024/02/04 01:50 | Taisei Ichikawa v Scott Jones | 7-6,4-6,6-3 |
| Challenger Burnie | 2024/01/28 23:00 | Taisei Ichikawa v Scott Jones | 5-7,1-6 |
| Challenger Concepcion | 2024/04/22 15:30 | Lautaro Agustin Falabella v Seita Watanabe | 2-6,7-5,6-3 |
| Challenger Concepcion | 2024/04/21 16:50 | Seita Watanabe v Felix Corwin | 3-6,6-2,6-4 |
| ITF M25 Hammamet | 2024/04/10 10:10 | Seita Watanabe v Johan Nikles | 6-7,4-6 |
| ITF M25 Hammamet | 2024/04/08 14:25 | Seita Watanabe v Hong-Lin Fu | 1-6,4-6 |
| ITF M25 Hammamet | 2024/04/08 08:30 | Seita Watanabe v Marc Ros Mesas | 6-2,6-3 |
| ITF M25 Hammamet | 2024/04/02 09:00 | Noah Perfetti v Seita Watanabe | 4-6,6-2,7-5 |
| Challenger Kigali | 2024/03/04 10:20 | Florent Bax v Seita Watanabe | 6-1,6-4 |
| Challenger Kigali | 2024/03/03 11:35 | Sai K R Ganta v Seita Watanabe | 4-6,2-6 |