| ITF Korea F4 | 2018/08/13 03:00 | Minjong Park v William Ma | 6-3,6-1 |
| ITF China F8 | 2018/06/07 02:00 | Fajing Sun v William Ma | 6-1,6-1 |
| ITF China F8 | 2018/06/05 02:00 | William Ma v Ruitong Fang | 6-4,6-4 |
| ITF China F8 Qual | 2018/06/03 03:25 | William Ma v Zijiang Yang | 6-2,6-2 |
| ITF China F7 Qual | 2018/05/27 06:05 | Bingyu Yu v William Ma | 6-4,6-0 |
| ITF China F6 Qual | 2018/05/14 03:00 | Tsung-Hao Huang v William Ma | 6-2,6-4 |
| ITF China F6 Qual | 2018/05/13 03:00 | Jianhui Li v William Ma | 6-2,6-7,3-6 |
| ITF China F6 Qual | 2018/05/12 03:00 | William Ma v RunYu Zhao | 2-6,6-3,7-6 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Ho-Gi Kang v Hangyeom Kim | 5-7,6-3,6-1 |
| Challenger Gimcheon Qual | 2017/04/29 03:50 | Hangyeom Kim v Chan-Yeong Oh | 2-6,3-6 |
| ITF Korea F8 | 2016/09/04 02:00 | Sanhui Shin v Hangyeom Kim | 6-2,6-1 |
| ITF Korea F8 | 2016/08/27 01:00 | Hangyeom Kim v Chan-Yeong Oh | 0-6,2-6 |
| ITF Korea F8 | 2016/08/20 01:00 | Hangyeom Kim v Weibowen Zou | 4-6,2-6 |