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