Round: 54 Ground: Hardcourt outdoor
| ITF Hong Kong F5 | 2017/12/23 02:00 | Oh, Chan-Yeong v 아담슨, 알렉 | 7-5,6-3 |
| Hong Kong F4, Singles | 2017/12/18 02:00 | 리우, 사우판 v Oh, Chan-Yeong | 7-6,6-2 |
| ITF Korea F4 | 2017/06/22 02:00 | Oh, Chan-Yeong v 송, 민규 | 5-7,2-6 |
| ITF Korea F4 | 2017/06/20 03:40 | Oh, Chan-Yeong v 이, 태우 | 7-6,7-6 |
| ITF Korea F3 | 2017/06/13 02:00 | 송, 민규 v Oh, Chan-Yeong | 7-5,5-7,6-4 |
| ITF Korea F2 | 2017/06/09 02:00 | 엔구이엔, 다니엘 v Oh, Chan-Yeong | 2-6,6-2,6-4 |
| 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 Hong Kong F5 | 2017/12/23 02:00 | Sakai, Yuto v 콩카르, 콩섭 | 6-4,6-4 |
| Challenger Toyota Qual | 2017/11/11 07:35 | 에하라, 히로야스 v Sakai, Yuto | 6-7,6-2,6-3 |
| Challenger Toyota Qual | 2017/11/11 02:15 | Sakai, Yuto v Osafune, Masaki | 7-6,1-6,6-1 |
| Challenger Kobe Qual | 2017/11/04 05:20 | Sakai, Yuto v 푸쿠다, 소라 | 1-6,3-6 |
| ITF Japan F8 | 2017/06/15 01:00 | Sakai, Yuto v 와타누키, 유스케 | 4-6,6-3,3-6 |
| ITF Japan F8 | 2017/06/14 01:00 | Sakai, Yuto v Ono, Yohei | 7-5,6-0 |
| ITF Japan F8 | 2017/06/12 00:00 | 카스텔누오보, 루카 v Sakai, Yuto | 7-6,4-6,6-7 |
| ITF Japan F8 | 2017/06/11 03:00 | Sakai, Yuto v 하자와, 신지 | 6-1,6-4 |