Stadium: Center Court Round: 28 Ground: Hardcourt outdoor
| ITF Korea F8 | 2016/08/25 02:00 | Cheong-Eui Kim v Yong-Kyu Lim | 6-3,6-4 |
| ITF Korea F1 | 2018/06/08 03:40 | Cheong-Eui Kim v Tae-Woo Lee | 6-4,5-7,6-4 |
| ITF Korea F1 | 2018/06/07 01:00 | Cheong-Eui Kim v Dong-Hak Sin | 6-1,6-2 |
| ITF Korea F1 | 2018/06/06 01:00 | Cheong-Eui Kim v Joy Vigani | 7-6,6-0 |
| ITF China F6 | 2018/05/15 02:00 | Cheong-Eui Kim v Sami Reinwein | 4-6,3-6 |
| ITF China F5 | 2018/05/10 03:00 | Cheong-Eui Kim v Jumpei Yamasaki | 2-6,5-7 |
| ITF China F5 | 2018/05/08 02:00 | Cheong-Eui Kim v Patrik Niklas-Salminen | 6-7,6-4,6-4 |
| ITF China F4 | 2018/05/05 03:00 | Cheong-Eui Kim v Yecong He | 4-6,6-7 |
| ITF China F4 | 2018/05/04 04:45 | Cheong-Eui Kim v Shi Hong Zeng | 6-1,6-1 |
| ITF Korea F1 | 2018/06/08 02:00 | Ji Sung Nam v Yong-Kyu Lim | 1-6,2-6 |
| ITF Korea F1 | 2018/06/07 02:35 | Minjong Park v Yong-Kyu Lim | 5-7,1-6 |
| ITF Korea F1 | 2018/06/06 03:20 | Yong-Kyu Lim v Min-Kyu Song | 4-6,6-4,6-1 |
| Challenger Busan Qual | 2018/05/12 04:05 | Yong-Kyu Lim v Wishaya Trongcharoenchaikul | 7-6,6-7,2-6 |
| Challenger Gimcheon Qual | 2018/05/06 04:30 | Yong-Kyu Lim v Wishaya Trongcharoenchaikul | 6-2,6-7,4-6 |
| Challenger Gimcheon Qual | 2018/05/05 01:30 | Yong-Kyu Lim v Cheng-Peng Hsieh | 6-4,6-3 |
| Challenger Seoul Qual | 2018/04/29 04:55 | Renta Tokuda v Yong-Kyu Lim | 6-4,6-4 |
| Challenger Seoul Qual | 2018/04/28 04:30 | Yong-Kyu Lim v Frederik Nielsen | 6-4,6-1 |