| ITF China F4 Qual | 2018/04/29 05:15 | Cheong Hwi Kim v Ang Ji | 1-6,6-3,6-3 |
| ITF China F11 Qual | 2018/07/14 04:50 | Mikal Statham v Ang Ji | 6-1,6-0 |
| ITF China F10 Qual | 2018/07/08 02:00 | Ang Ji v Weiqiang Zheng | 3-6,0-6 |
| ITF China F10 Qual | 2018/07/07 02:00 | Jiaqi Zhao v Ang Ji | 1-6,1-6 |
| ITF China F9 Qual | 2018/06/30 02:00 | Ang Ji v Joachim Li-Ernoul | 6-1,2-6,2-6 |
| ITF China F8 Qual | 2018/06/02 02:00 | Yong Jia Cai v Ang Ji | 6-1,6-4 |
| ITF China F7 | 2018/05/29 04:50 | Jianhui Li v Ang Ji | 6-3,6-0 |
| ITF China F7 Qual | 2018/05/28 03:30 | Ang Ji v Bingyu Yu | 6-7,6-4,6-2 |
| ITF China F7 Qual | 2018/05/27 05:40 | Ang Ji v Xiaoyu He | 2-6,6-2,6-3 |
| ITF Korea F4 | 2018/08/11 01:00 | Seon Yong Han v Cheong Hwi Kim | 6-4,2-6,1-6 |
| ITF Chinese Taipei F2 Qual | 2018/07/22 05:30 | Liang-Yu Lin v Cheong Hwi Kim | 6-2,6-4 |
| ITF Chinese Taipei F1 Qual | 2018/07/15 02:00 | Chih Chi Huang v Cheong Hwi Kim | 6-4,3-6,6-3 |
| ITF Malaysia F1 Qual | 2018/07/01 08:00 | Cheong Hwi Kim v Shamael Chaudhry | 3-6,5-7 |
| ITF Malaysia F1 Qual | 2018/07/01 02:00 | Naesar Jewoor v Cheong Hwi Kim | 3-6,3-6 |
| ITF Korea F3 Qual | 2018/06/16 05:00 | Jae Won Yun v Cheong Hwi Kim | 6-0,5-7,6-1 |
| ITF China F6 Qual | 2018/05/12 09:10 | Sheng Tang v Cheong Hwi Kim | 7-5,6-3 |
| ITF China F5 Qual | 2018/05/05 09:40 | Changli Zhang v Cheong Hwi Kim | 6-3,6-1 |