Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Sapporo | 2023/09/16 03:55 | Naoki Nakagawa v Hayato Matsuoka | 6-2,6-2 |
| ITF M25 Sapporo | 2023/09/15 04:50 | Hayato Matsuoka v Yuta Kawahashi | 7-5,6-4 |
| ITF M25 Sapporo | 2023/09/15 01:00 | Kazuma Kawachi v Hayato Matsuoka | 3-6,6-0,4-6 |
| ITF M25 Sapporo | 2023/09/13 01:00 | Hayato Matsuoka v Ryotaro Taguchi | 6-2,3-6,6-3 |
| ITF M25 Sapporo | 2023/09/11 02:20 | Hayato Matsuoka v Chih Chi Huang | 6-2,3-6,10-4 |
| ITF M25 Rome | 2023/05/30 14:15 | Hayato Matsuoka v Marcello Serafini | 1-6,2-6 |
| ITF M25 Rome | 2023/05/29 09:30 | Grigoriy Lomakin v Hayato Matsuoka | 3-6,2-6 |
| ITF M25 Rome | 2023/05/28 08:00 | Gabriel Sardo v Hayato Matsuoka | 0-6,1-6 |
| ITF M25 Hong Kong Qual | 2023/09/04 02:00 | Collin Altamirano v Ren Nakamura | 6-4,6-1 |
| ITF M25 Hong Kong | 2023/08/28 02:00 | Blake Mott v Ren Nakamura | 6-3,4-6,10-7 |
| ITF M25 Hong Kong | 2023/08/27 02:30 | Ren Nakamura v Rohan Mehra | 6-3,6-3 |
| ITF M25 Tainan | 2023/08/21 04:05 | Jesse Delaney v Ren Nakamura | 6-2,6-3 |
| ITF M25 Tainan | 2023/08/20 05:30 | Ian Turner v Ren Nakamura | 1-6,1-6 |
| ITF M15 Jakarta | 2023/06/18 05:00 | Mason Naumovski v Ren Nakamura | 6-3,6-3 |
| ITF M15 Jakarta | 2023/06/11 04:00 | Ren Nakamura v Ying-Ze Chen | 5-7,4-6 |
| ITF M15 Karuizawa | 2023/05/31 01:00 | Yuichiro Inui v Ren Nakamura | 6-1,3-6,6-4 |