Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF - M25 Takasaki | 2023/09/21 03:30 | Hikaru Shiraishi v Taisei Ichikawa | 6-3,6-1 |
| ITF - M25 Takasaki | 2023/09/19 01:00 | Yunseok Jang v Taisei Ichikawa | 1-6,2-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/09/07 02:00 | Taisei Ichikawa v James Watt | 4-6,3-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/09/05 03:35 | Taisei Ichikawa v Credit Chaiyarin | 6-4,6-4 |
| ITF - M15 Nakhon Si Thammarat | 2023/09/01 02:00 | Thanapet Chanta v Taisei Ichikawa | 7-6,7-5 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/31 01:55 | Patrik Oplustil v Taisei Ichikawa | 6-4,4-6,3-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/30 02:00 | Grigoriy Lomakin v Taisei Ichikawa | 6-7,4-6 |
| ITF - M25 Tainan | 2023/08/23 02:00 | Taisei Ichikawa v Henrik Wiersholm | 6-7,2-6 |
| ITF M25 - Darwin | 2023/09/21 06:30 | Taiyo Yamanaka v Scott Jones | 6-2,1-6,6-7 |
| ITF M25 - Darwin | 2023/09/19 09:25 | Jacob Brumm v Taiyo Yamanaka | 5-7,4-6 |
| ITF M25 - Darwin | 2023/09/14 05:25 | Taiyo Yamanaka v Jeremy Beale | 6-7,2-6 |
| ITF M25 - Darwin | 2023/09/13 05:30 | Taiyo Yamanaka v Timmy Karpinski | 4-6,6-4,6-2 |
| ITF - M15 Nakhon Si Thammarat | 2023/09/05 03:40 | Jacob Bradshaw v Taiyo Yamanaka | 2-6,6-3,7-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/30 08:30 | Taiyo Yamanaka v Thantub Suksumrarn | 2-6,3-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/23 05:40 | Taiyo Yamanaka v Collin Altamirano | 6-3,1-6,4-6 |
| ITF - M15 Caloundra | 2023/08/01 04:45 | Daisuke Sumizawa v Taiyo Yamanaka | 4-6,6-3,7-6 |