Stadium: Ct 9 Round: 45 Ground: Hardcourt outdoor
| ITF Korea F6 | 2018/08/28 02:00 | William Ma v Seong-Gook Oh | 6-4,2-6,0-6 |
| ITF Korea F5 | 2018/08/19 02:00 | William Ma v Seoung Hun Lee | 6-3,4-6,3-6 |
| ITF Korea F5 | 2018/08/18 01:00 | William Ma v Hangyeom Kim | 6-3,6-3 |
| 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 |