Stadium: Sub- Center Round: 14 Ground: Hardcourt outdoor
| Challenger Shenzhen | 2023/10/09 09:35 | Colin Sinclair v Ray Ho | 6-3,6-4 |
| 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 |
| Challenger Shenzhen | 2023/10/19 07:55 | Colin Sinclair v Lorenzo Giustino | 3-6,4-6 |
| Challenger Shenzhen | 2023/10/16 07:00 | Evgeny Donskoy v Colin Sinclair | 6-2,3-6,4-6 |
| Challenger Shenzhen | 2023/10/11 03:40 | Thanasi Kokkinakis v Colin Sinclair | 6-2,3-6,6-3 |
| Challenger Shenzhen | 2023/10/16 02:00 | Tsung-Hao Huang v Ray Ho | 6-3,6-2 |
| Challenger Shenzhen Qual | 2023/10/15 02:00 | Qian Sun v Ray Ho | 1-6,4-6 |
| Challenger Shenzhen | 2023/10/09 09:35 | Colin Sinclair v Ray Ho | 6-3,6-4 |
| Challenger Guangzhou | 2023/09/11 04:35 | Luca Castelnuovo v Ray Ho | 6-7,6-3,6-2 |
| Challenger Guangzhou | 2023/09/10 06:35 | Linghao Zhang v Ray Ho | 1-6,0-6 |
| Challenger Shanghai | 2023/09/04 03:00 | Robert Strombachs v Ray Ho | 6-4,7-5 |
| Challenger Zhangjiagang | 2023/08/28 02:00 | Mikalai Haliak v Ray Ho | 6-3,6-1 |
| Challenger Zhangjiagang | 2023/08/27 03:30 | Toshihide Matsui v Ray Ho | 0-6,2-6 |