Stadium: Court 14 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Daegu | 2023/06/07 04:40 | Oh, Chan-Yeong v 충, 훙 | 2-6,4-6 |
| ITF Korea F5 | 2018/08/24 01:15 | 충, 훙 v Oh, Chan-Yeong | 7-5,6-1 |
| ITF Korea F2 | 2018/06/13 06:45 | 충, 훙 v Oh, Chan-Yeong | 2-6,2-6 |
| ITF Korea F2 | 2017/06/08 02:40 | Oh, Chan-Yeong v 충, 훙 | 7-6,3-6,6-3 |
| ITF Korea F2 | 2017/06/08 02:30 | Oh, Chan-Yeong v 충, 훙 | 7-6,3-6,5-3 |
| ITF M25 Daegu | 2023/06/07 04:40 | Oh, Chan-Yeong v 충, 훙 | 2-6,4-6 |
| ITF M15 Sharm El Sheikh | 2022/11/27 08:00 | 충, 훙 v Maks Lukman | 6-7,6-7 |
| ITF M15 Sharm El Sheikh | 2022/11/23 13:20 | 충, 훙 v Tomas Lanik | 4-6,2-6 |
| Challenger Seoul | 2022/10/13 03:35 | 덕워스, 제임스 v 충, 훙 | 7-6,6-1 |
| ITF M15 Daegu | 2022/08/29 06:00 | 충, 훙 v 신, 산후이 | 5-7,3-6 |
| ITF M15 Anseong | 2022/08/17 04:30 | 푸쿠다, 소라 v 충, 훙 | 6-4,6-2 |
| ITF M15 Sharm El Sheikh | 2022/03/21 07:30 | 충, 훙 v Pokorny, Lukas | 3-6,2-6 |
| ITF M15 Sharm El Sheikh | 2022/03/20 13:00 | 페라리, 프란세스코 v 충, 훙 | 1-6,2-6 |
| ITF M25 Changwon | 2023/06/12 08:20 | Oh, Chan-Yeong v Dae Han Kim | 5-7,6-2,10-4 |
| ITF M25 Changwon | 2023/06/12 04:55 | Oh, Chan-Yeong v Chan Hee Han | 6-3,6-2 |
| ITF M25 Changwon | 2023/06/11 05:35 | 한, 선용 v Oh, Chan-Yeong | 3-6,2-6 |
| ITF M25 Daegu | 2023/06/07 04:40 | Oh, Chan-Yeong v 충, 훙 | 2-6,4-6 |
| ITF M25 Daegu | 2023/06/05 01:00 | 오카무라, 이세이 v Oh, Chan-Yeong | 1-6,6-4,7-10 |
| ITF M15 Daegu | 2022/08/29 00:30 | 신, 산후이 v Oh, Chan-Yeong | 6-2,6-2 |
| ITF M15 Changwon | 2022/08/21 03:30 | Oh, Chan-Yeong v 추, 숙현 | 6-2,3-6,7-10 |
| ITF M15 Changwon | 2019/10/14 01:30 | Oh, Chan-Yeong v 이, 영석 | 4-6,6-7 |