Stadium: Court 5 Round: 25
| 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 |
| ITF China F6 Qual | 2018/05/14 03:00 | Tsung-Hao Huang v William Ma | 6-2,6-4 |
| ITF Korea F4 | 2018/08/19 03:15 | Jae Hwan Kim v Seong-Gook Oh | 6-3,3-6,4-6 |
| ITF Korea F4 | 2018/08/18 01:00 | Seong-Gook Oh v Uisung Park | 6-4,6-2 |
| ITF Korea F4 | 2018/08/17 01:00 | Seong-Gook Oh v Mousheg Hovhannisyan | 4-6,6-4,6-2 |
| ITF Korea F4 | 2018/08/16 01:00 | Seong-Gook Oh v Oh-Hee Kwon | 6-4,6-4 |
| ITF Malaysia F2 | 2018/07/10 03:50 | Rhett Purcell v Seong-Gook Oh | 7-6,7-5 |
| ITF Malaysia F1 | 2018/07/04 03:30 | Soichiro Moritani v Seong-Gook Oh | 6-4,6-0 |
| ITF Malaysia F1 | 2018/07/03 10:05 | Seong-Gook Oh v Sang-Woo Noh | 7-6,6-2 |
| ITF Korea F3 | 2018/06/18 03:30 | Seong-Gook Oh v Seong Chan Hong | 6-7,0-6 |