Stadium: Court 12 Round: 25 Ground: Hardcourt outdoor
| Challenger Kigali | 2024/03/03 09:50 | Ren Nakamura v Kelsey Stevenson | 6-7,3-6 |
| Challenger Kigali | 2024/02/25 10:15 | Seita Watanabe v Ren Nakamura | 6-1,6-4 |
| ITF M25 Traralgon | 2024/02/18 01:30 | Mason Naumovski v Ren Nakamura | 5-7,6-3,10-7 |
| ITF M15 Kuala Lumpur | 2023/11/27 01:30 | Mattias Southcombe v Ren Nakamura | 6-3,3-6,10-3 |
| ITF M15 Ipoh Perak | 2023/11/20 01:30 | Ren Nakamura v Chien Hsun Lo | 6-3,3-6,7-10 |
| ITF M15 Kuching | 2023/11/16 03:25 | Ren Nakamura v Taiyo Yamanaka | 1-6,0-6 |
| ITF M15 Kuching | 2023/11/15 03:30 | Jimmy Yang v Ren Nakamura | 2-6,4-6 |
| ITF M15 Kuching | 2023/11/14 02:30 | Tanguy Genier v Ren Nakamura | 4-6,4-6 |
| Challenger Noumea | 2024/01/03 09:40 | Colin Sinclair v Benoit Paire | 6-4,2-6,2-6 |
| Challenger Noumea | 2024/01/02 02:40 | Rubin Statham v Colin Sinclair | 7-6,4-6,4-6 |
| Challenger Yokkaichi | 2023/11/26 04:35 | Colin Sinclair v Ray Ho | 3-6,5-7 |
| Challenger Yokohama | 2023/11/21 03:45 | Colin Sinclair v Mathys Erhard | 3-6,2-6 |
| Challenger Yokohama | 2023/11/20 03:30 | Giovanni Fonio v Colin Sinclair | 3-6,7-5,6-7 |
| Challenger Yokohama | 2023/11/19 07:55 | Nathan Ponwith v Colin Sinclair | 3-6,6-7 |
| Challenger Kobe | 2023/11/12 01:00 | James Trotter v Colin Sinclair | 6-4,7-5 |
| Challenger Sydney | 2023/10/30 04:05 | Colin Sinclair v Marc Polmans | 4-6,2-6 |