| Challenger Busan Qual | 2017/05/15 02:00 | Jeamoon Lee v Raymond Sarmiento | 2-6,4-6 |
| Challenger Busan Qual | 2017/05/13 02:00 | Young Seok Kim v Jeamoon Lee | 3-6,3-6 |
| Challenger Gimcheon | 2017/05/02 03:50 | Thomas Fabbiano v Jeamoon Lee | 6-0,6-1 |
| ITF Japan F3 | 2017/03/24 01:00 | Shane Vinsant v Jeamoon Lee | 6-2,7-5 |
| ITF Japan F3 | 2017/03/23 01:30 | Yusuke Takahashi v Jeamoon Lee | 3-6,1-6 |
| ITF Japan F3 | 2017/03/22 04:45 | Jumpei Yamasaki v Jeamoon Lee | 6-7,3-6 |
| ITF Japan F3 | 2017/03/20 04:00 | Jeamoon Lee v Yosuke Watanuki | 6-3,2-6,6-0 |
| ITF Japan F3 | 2017/03/19 01:00 | Jeamoon Lee v Katsuki Nagao | 7-6,6-4 |
| Challenger Busan | 2017/05/18 08:35 | Tatsuma Ito v Hong Chung | 6-2,1-6,6-1 |
| Challenger Busan | 2017/05/16 05:25 | Yuya Kibi v Hong Chung | 1-6,6-4,4-6 |
| Challenger Seoul | 2017/05/08 07:00 | Hong Chung v Dudi Sela | 5-7,3-6 |
| Challenger Gimcheon Qual | 2017/04/30 01:00 | Hong Chung v Liam Broady | 5-7,3-6 |
| Challenger Gimcheon Qual | 2017/04/29 02:20 | Sidharth Rawat v Hong Chung | 6-7,3-6 |
| ITF Japan F3 | 2017/03/22 07:00 | Hong Chung v Takuto Niki | 3-6,5-7 |
| ITF Japan F3 | 2017/03/22 02:05 | Hong Chung v Rimpei Kawakami | 6-2,3-6,6-2 |
| ITF Japan F2 | 2017/03/15 02:00 | Zhe Li v Hong Chung | 6-1,6-7,6-3 |