Stadium: Court 9 Round: 25 Ground: Clay
| ITF M15 Monastir | 2023/05/10 12:10 | Yuichiro Inui v Robin Bertrand | 1-6,6-3,6-7 |
| ITF M15 Monastir | 2023/05/03 14:10 | Aziz Ouakaa v Yuichiro Inui | 6-3,6-2 |
| ITF M25 Kashiwa | 2023/04/02 04:00 | Yuichiro Inui v Hiroyasu Ehara | 4-6,2-6 |
| ITF M25 Tsukuba | 2023/03/27 03:00 | Yuichiro Inui v Sora Fukuda | 0-6,4-6 |
| ITF M15 Heraklion | 2023/03/23 09:50 | Yuichiro Inui v Francois Musitelli | 3-6,2-6 |
| ITF M15 Heraklion | 2023/03/21 11:25 | Simon A Ivanov v Yuichiro Inui | 5-7,3-6 |
| ITF M15 Heraklion | 2023/03/14 09:55 | Simon A Ivanov v Yuichiro Inui | 6-1,6-4 |
| ITF M25 Swan Hill | 2023/03/01 03:00 | Luke Saville v Yuichiro Inui | 6-3,6-4 |
| ITF M15 Karuizawa | 2023/05/30 02:15 | Yua Taka v Ren Nakamura | 6-0,7-5 |
| UTR Pro Miki | 2023/04/21 06:20 | Ren Nakamura v Yuto Okuchi | 4-6,6-2,6-7 |
| UTR Pro Miki | 2023/04/19 05:00 | Ren Nakamura v Jordan Chiu | 6-4,6-4 |
| UTR Pro Miki | 2023/04/18 06:07 | Ren Nakamura v Tanihata Kouyou | 6-1,5-0 |
| UTR Pro Miki | 2023/04/17 04:50 | Shinde Yuzuki v Ren Nakamura | 7-5,2-6,6-2 |
| UTR Pro Miki | 2023/04/15 08:47 | Ren Nakamura v Natsuki Yamamoto | 2-6,3-6 |
| UTR Pro Miki | 2023/04/14 02:00 | Ren Nakamura v Yuto Oki | 6-3,6-0 |
| UTR Pro Miki | 2023/04/13 03:30 | Ren Nakamura v Ryotaro Taguchi | 6-4,6-7,3-6 |