Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Sapporo | 2023/09/15 01:00 | Gage Brymer v Yuta Kawahashi | 0-6,5-7 |
| ITF M25 Sapporo | 2023/09/13 03:30 | Mitsuki Wei Kang Leong v Gage Brymer | 6-4,6-7,0-6 |
| ITF M15 Nakhon Si Thammarat | 2023/09/06 05:50 | Thantub Suksumrarn v Gage Brymer | 6-4,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/08/30 09:00 | Gage Brymer v Kody Pearson | 4-6,2-6 |
| ITF M15 Nakhon Si Thammarat | 2023/08/23 01:55 | Gage Brymer v Siddhant Banthia | 6-7,3-6 |
| Challenger Stanford | 2023/08/13 17:00 | Nick Chappell v Gage Brymer | 6-4,6-1 |
| Challenger Stanford | 2023/08/12 18:20 | Gage Brymer v Nathan Ponwith | 1-6,6-1,6-1 |
| ITF M25 Southaven | 2023/08/10 20:30 | Gage Brymer v Keshav Chopra | 3-6,1-6 |
| ITF M25 Takasaki | 2023/09/20 02:40 | Ryota Tanuma v Mitsuki Wei Kang Leong | 6-4,6-4 |
| ITF M25 Sapporo | 2023/09/13 01:00 | Shuichi Sekiguchi v Ryota Tanuma | 7-6,6-1 |
| ITF M25 Sapporo | 2023/09/07 00:50 | Kokoro Isomura v Ryota Tanuma | 6-4,6-3 |
| ITF M25 Sapporo | 2023/09/05 02:00 | Ryota Tanuma v Yunseok Jang | 6-4,7-5 |
| Challenger Matsuyama | 2022/11/06 01:00 | Ryota Tanuma v Naoki Nakagawa | 3-6,4-6 |
| Challenger Yokohama | 2022/11/01 05:55 | Damir Dzumhur v Ryota Tanuma | 6-3,6-1 |
| Challenger Yokohama | 2022/10/31 01:30 | Rimpei Kawakami v Ryota Tanuma | 6-7,6-4,4-6 |
| Challenger Seoul | 2022/10/09 06:00 | Hamad Medjedovic v Ryota Tanuma | 6-4,6-3 |