| ITF Korea F2 | 2017/06/06 01:00 | Jae Won Yun v Chan-Yeong Oh | 2-6,0-6 |
| ITF Korea F1 | 2017/06/02 02:50 | Chan-Yeong Oh v Makoto Ochi | 0-6,2-6 |
| ITF Korea F1 | 2017/06/01 02:00 | Ju-Hae Moon v Chan-Yeong Oh | 3-6,2-6 |
| ITF Korea F1 | 2017/05/31 06:40 | Chan-Yeong Oh v Woo Hyeok Jang | 6-2,4-6,6-1 |
| Challenger Busan | 2017/05/15 08:00 | Chan-Yeong Oh v Sadio Doumbia | 6-2,2-6,2-6 |
| Challenger Seoul Qual | 2017/05/07 01:30 | Chan-Yeong Oh v Luke Saville | 2-6,4-6 |
| Challenger Seoul Qual | 2017/05/06 01:00 | Chan-Yeong Oh v Hyeong Jin Cho | 6-1,6-2 |
| Challenger Gimcheon Qual | 2017/04/30 02:50 | Chan-Yeong Oh v Hubert Hurkacz | 0-6,3-6 |
| ITF Korea F2 | 2017/06/06 01:00 | Jae-Won Choi v Hong Chung | 2-6,0-6 |
| ITF Korea F1 | 2017/06/02 01:00 | Cheong-Eui Kim v Hong Chung | 6-3,6-7,6-2 |
| ITF Korea F1 | 2017/06/01 02:40 | Dae-Hee Lee v Hong Chung | 1-6,0-6 |
| ITF Korea F1 | 2017/05/31 01:00 | Young Seok Kim v Hong Chung | 1-6,4-6 |
| Challenger Busan | 2017/05/18 08:35 | Tatsuma Ito v Hong Chung | 6-2,1-6,6-1 |
| Challenger Busan | 2017/05/16 05:25 | Yuya Kibi v Hong Chung | 1-6,6-4,4-6 |
| Challenger Seoul | 2017/05/08 07:00 | Hong Chung v Dudi Sela | 5-7,3-6 |
| Challenger Gimcheon Qual | 2017/04/30 01:00 | Hong Chung v Liam Broady | 5-7,3-6 |