Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF Korea F5 | 2017/06/30 02:00 | Tae-Woo Lee v Cheong-Eui Kim | 6-4,1-6,7-6 |
| ITF Korea F3 | 2017/06/18 03:25 | Cheong-Eui Kim v Tae-Woo Lee | 7-6,6-4 |
| ITF China F4 | 2018/05/01 05:25 | Cheong-Eui Kim v Mousheg Hovhannisyan | 6-4,6-3 |
| Challenger Qujing | 2018/03/19 02:00 | Lorenzo Sonego v Cheong-Eui Kim | 6-1,6-4 |
| Challenger Shenzhen Qual | 2018/03/11 07:30 | Kamil Majchrzak v Cheong-Eui Kim | 6-4,6-2 |
| Challenger Shenzhen Qual | 2018/03/11 02:40 | Cheong-Eui Kim v Gerard Granollers-Pujol | 4-6,6-3,7-5 |
| Challenger Zhuhai Qual | 2018/03/03 06:55 | Ronald Slobodchikov v Cheong-Eui Kim | 6-4,7-6 |
| Challenger Yokohama Qual | 2018/02/24 01:00 | Wishaya Trongcharoenchaikul v Cheong-Eui Kim | 6-4,7-6 |
| Challenger Kyoto Qual | 2018/02/18 06:20 | Cheong-Eui Kim v Blake Ellis | 3-6,6-4,6-7 |
| Challenger Kyoto Qual | 2018/02/17 06:55 | Cheong-Eui Kim v Arata Onozawa | 2-6,6-3,6-4 |
| Challenger Seoul Qual | 2018/04/28 03:05 | Jung-Woong Na v Tae-Woo Lee | 6-1,6-3 |
| ITF Japan F4 | 2018/03/24 00:00 | Tae-Woo Lee v Tamaki Yamao | 1-6,4-6 |
| ITF Japan F3 | 2018/03/19 02:40 | Tae-Woo Lee v Kaito Uesugi | 3-6,3-6 |
| ITF Japan F2 | 2018/03/12 02:30 | Tung-Lin Wu v Tae-Woo Lee | 6-1,6-1 |
| ITF Turkey F6 | 2018/02/15 09:10 | Jordi Samper-Montana v Tae-Woo Lee | 6-1,6-0 |
| ITF Turkey F6 | 2018/02/14 12:20 | Thomas Statzberger v Tae-Woo Lee | 2-6,6-3,4-6 |
| ITF Turkey F5 | 2018/02/07 08:30 | Tae-Woo Lee v Jordi Samper-Montana | 1-6,1-6 |
| ITF Turkey F4 | 2018/01/30 09:05 | Tak Khunn Wang v Tae-Woo Lee | 6-0,6-3 |