Stadium: Court 13 Round: 62
| ITF Thailand F12 Qual | 2017/12/09 05:30 | Cheong Hwi Kim v Sung Jun Park | 1-6,1-6 |
| ITF Korea F5 | 2018/08/18 03:00 | Ang Ji v Sung Jun Park | 1-6,3-6 |
| 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 F5 | 2018/08/18 03:00 | Edward Lewis v Cheong Hwi Kim | 2-6,0-6 |
| ITF Korea F4 | 2018/08/13 01:00 | Cheong Hwi Kim v Jeong Heon Lee | 3-6,6-3,3-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Ang Ji v Cheong Hwi Kim | 1-6,1-6 |
| 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 |