| ITF Korea F4 | 2018/08/12 02:00 | Ang Ji v Cheong Hwi Kim | 1-6,1-6 |
| 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 |
| Challenger Gwangju Qual | 2018/08/11 03:20 | Woo Hyeok Jang v Sung Jun Park | 6-4,6-3 |
| ITF Korea F3 Qual | 2018/06/16 02:00 | Young-Hoon Jeong v Sung Jun Park | 6-3,6-3 |
| ITF Korea F2 | 2018/06/11 03:30 | Jae Hwan Kim v Sung Jun Park | 6-1,6-2 |
| ITF Korea F2 | 2018/06/10 02:00 | Sung Jun Park v Dylan Seong Kwan Kim | 7-6,6-1 |
| ITF Korea F2 | 2018/06/09 01:00 | Jung Hoon Kim v Sung Jun Park | 0-6,2-6 |
| ITF Korea F1 | 2018/06/04 03:55 | Sung Jun Park v Sang Yeop Kim | 3-6,3-6 |
| ITF Korea F1 | 2018/06/03 03:30 | Yu Hsiang Chiu v Sung Jun Park | 4-6,2-6 |
| ITF Korea F1 | 2018/06/02 02:00 | Sung Jun Park v Seoung Hun Lee | 6-1,6-1 |