| Challenger Toyota Qual | 2017/11/11 01:55 | Renta Tokuda v Cheong-Eui Kim | 3-6,6-3,5-7 |
| Challenger Kobe | 2018/11/13 06:15 | Cheong-Eui Kim v Hiroki Moriya | 0-6,6-7 |
| Challenger Shenzhen 2 | 2018/10/27 02:00 | Zsombor Piros v Cheong-Eui Kim | 6-1,6-3 |
| Challenger Liuzhou | 2018/10/20 05:55 | Shi Hong Zeng v Cheong-Eui Kim | 6-4,6-4 |
| Challenger Shanghai | 2018/09/08 03:00 | N. Vijay Sundar Prashanth v Cheong-Eui Kim | 6-4,6-3 |
| ITF Korea F5 | 2018/08/25 01:00 | Cheong-Eui Kim v Ji Sung Nam | 2-6,3-6 |
| ITF Korea F5 | 2018/08/24 01:15 | Cheong-Eui Kim v Jae Hwan Kim | 6-3,6-3 |
| ITF Korea F5 | 2018/08/23 02:00 | Cheong-Eui Kim v Seong Taek Im | 7-6,6-0 |
| ITF Korea F5 | 2018/08/21 03:15 | Cheong-Eui Kim v Juan Ignacio Batalla | 6-1,6-2 |
| Australian Open WC | 2018/11/30 06:30 | Duckhee Lee v Renta Tokuda | 6-4,6-4 |
| Australian Open WC | 2018/11/29 03:40 | Arjun Kadhe v Renta Tokuda | 6-7,1-6 |
| Challenger Kobe | 2018/11/14 03:20 | Renta Tokuda v Soonwoo Kwon | 3-6,6-1,1-6 |
| Challenger Liuzhou | 2018/10/23 07:05 | Renta Tokuda v Yuichi Sugita | 2-6,5-7 |
| Challenger Liuzhou | 2018/10/22 03:00 | Renta Tokuda v Ye Cong Mo | 6-2,6-2 |
| Challenger Liuzhou | 2018/10/21 03:00 | Renta Tokuda v Jurabek Karimov | 6-1,7-6 |
| Challenger Liuzhou | 2018/10/20 06:55 | Renta Tokuda v Yusuke Takahashi | 7-5,6-0 |
| Challenger Ningbo | 2018/10/18 06:25 | Renta Tokuda v Radu Albot | 4-6,6-7 |