Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| Challenger Zhangjiagang | 2019/03/18 03:35 | Evgeny Karlovskiy v Cheong-Eui Kim | 6-2,7-5 |
| Challenger Yokohama | 2019/02/27 05:50 | Go Soeda v Cheong-Eui Kim | 6-1,6-4 |
| Challenger Yokohama | 2019/02/26 01:00 | Cheong-Eui Kim v Naoto Kai | 6-1,6-3 |
| Challenger Yokohama | 2019/02/25 01:00 | Cheong-Eui Kim v Shintaro Imai | 6-1,7-5 |
| ITF M15 Sharm El Sheikh | 2019/02/21 08:00 | Cheong-Eui Kim v Filip Bergevi | 6-1,6-7,4-6 |
| ITF M15 Sharm El Sheikh | 2019/02/20 08:00 | Cheong-Eui Kim v Claudio Fortuna | 7-6,6-4 |
| ITF M15 Sharm El Sheikh | 2019/02/16 09:45 | Tung-Lin Wu v Cheong-Eui Kim | 6-4,4-6,6-4 |
| ITF M15 Sharm El Sheikh | 2019/02/15 08:00 | Cheong-Eui Kim v Vladyslav Manafov | 6-4,6-2 |
| Challenger Yokohama | 2019/02/25 07:10 | Andrew Harris v Yo Han Sung | 6-1,6-2 |
| ITF Japan F1 | 2018/03/04 01:00 | Yo Han Sung v Masamichi Imamura | 0-6,0-6 |
| Challenger Yokohama Qual | 2018/02/24 06:15 | Yuta Shimizu v Yo Han Sung | 6-2,6-3 |