| ITF Korea F1 | 2018/06/07 01:00 | Chan-Yeong Oh v Tae-Woo Lee | 4-6,2-6 |
| ITF Korea F1 | 2018/06/05 01:00 | Chan-Yeong Oh v Ku Keon Kang | 6-4,6-4 |
| Challenger Busan | 2018/05/14 06:20 | Kaichi Uchida v Chan-Yeong Oh | 6-1,6-4 |
| ITF Hong Kong F6 | 2018/01/03 03:20 | Harri Heliovaara v Chan-Yeong Oh | 6-1,6-3 |
| ITF Hong Kong F6 | 2018/01/02 03:55 | Chan-Yeong Oh v Anthony Jackie Tang | 7-5,6-4 |
| ITF Hong Kong F5 | 2017/12/26 05:45 | Tung-Lin Wu v Chan-Yeong Oh | 6-2,7-6 |
| ITF Hong Kong F5 | 2017/12/24 02:00 | Chan-Yeong Oh v Yuto Sakai | 6-3,6-3 |
| ITF Hong Kong F5 | 2017/12/23 02:00 | Chan-Yeong Oh v Alec Adamson | 7-5,6-3 |
| ITF Korea F2 | 2018/06/10 01:00 | Jaeheon Yoon v Sang Yeop Kim | 1-6,1-6 |
| ITF Korea F1 | 2018/06/06 01:00 | Takuto Niki v Sang Yeop Kim | 6-0,6-0 |
| ITF Korea F1 | 2018/06/04 03:55 | Sung Jun Park v Sang Yeop Kim | 3-6,3-6 |
| ITF Korea F5 | 2017/06/27 01:30 | Sang Yeop Kim v A-Ram Kim | 6-7,4-6 |
| ITF Korea F4 | 2017/06/20 04:30 | Sang Yeop Kim v Cheong-Eui Kim | 0-6,2-6 |
| ITF Korea F4 | 2017/06/19 01:00 | Sang Yeop Kim v Geon Ju Shin | 6-3,6-4 |
| ITF Korea F4 | 2017/06/18 01:00 | Dae-Hee Lee v Sang Yeop Kim | 3-6,4-6 |
| ITF Korea F4 | 2017/06/17 01:00 | Donghwi Shin v Sang Yeop Kim | 2-6,2-6 |