Stadium: Court 6 Round: 14 Ground: Hardcourt outdoor
| ITF M25 Takasaki | 2023/09/21 05:15 | Tatsuma Ito v Koki Matsuda | 7-6,1-6,6-3 |
| ITF M25 Takasaki | 2023/09/20 02:45 | Tatsuma Ito v Toa Maeda | 6-3,6-0 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/12 02:00 | Naoki Tajima v Tatsuma Ito | 3-6,1-6 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/07 03:00 | Ryotaro Matsumura v Tatsuma Ito | 7-6,6-4 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/06 03:35 | Seita Watanabe v Tatsuma Ito | 6-4,4-6,4-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2023/08/30 02:00 | Kasidit Samrej v Tatsuma Ito | 6-1,6-4 |
| Challenger Winnipeg | 2023/08/14 16:00 | Kiranpal Pannu v Tatsuma Ito | 7-5,4-6,6-1 |
| Challenger Winnipeg | 2023/08/13 16:00 | Keegan Rice v Tatsuma Ito | 4-6,5-7 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/12 07:10 | Sanhui Shin v Kousuke Ogura | 7-5,4-6,6-7 |
| Hong Kong, Simples M-ITF-HKG-04A | 2023/09/07 06:55 | Sanhui Shin v Henrik Wiersholm | 6-1,3-6,3-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2023/09/06 04:05 | Sanhui Shin v Susanto, David Agung | 6-3,6-4 |
| Hong Kong, Simples M-ITF-HKG-04A | 2023/09/03 06:30 | Kasidit Samrej v Sanhui Shin | 5-7,6-7 |
| Hong Kong, Simples M-ITF-HKG-04A | 2023/09/03 02:00 | Sanhui Shin v Ajeet Rai | 6-7,6-3,10-5 |
| Hong Kong, Simples M-ITF-HKG-04A | 2023/08/31 02:00 | Sanhui Shin v Zhe Li | 6-3,3-6,6-2 |
| Hong Kong, Simples M-ITF-HKG-04A | 2023/08/29 02:00 | Sanhui Shin v Yue, Ching Ho Sunny | 6-0,6-2 |
| ITF M25 Tainan | 2023/08/24 02:00 | Sanhui Shin v Bang Shuo Yin | 7-5,1-6,3-6 |