Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Seoul Qual | 2017/05/07 01:30 | Oh, Chan-Yeong v Luke Saville | 2-6,4-6 |
| Challenger Seoul Qual | 2017/05/06 01:00 | Oh, Chan-Yeong v Cho, Hyeong Jin | 6-1,6-2 |
| Challenger Gimcheon Qual | 2017/04/30 02:50 | Oh, Chan-Yeong v Hubert Hurkacz | 0-6,3-6 |
| Challenger Gimcheon Qual | 2017/04/29 03:50 | Kim, Hangyeom v Oh, Chan-Yeong | 2-6,3-6 |
| ITF Japan F5 | 2017/04/05 02:50 | Oh, Chan-Yeong v Niki, Takuto | 4-6,6-3,2-6 |
| ITF Japan F5 | 2017/04/03 02:25 | Masamichi Imamura v Oh, Chan-Yeong | 6-7,6-4,3-6 |
| ITF Japan F4 | 2017/03/29 05:30 | Oh, Chan-Yeong v Ito, Yuichi | 4-6,1-6 |
| ITF Japan F4 | 2017/03/28 01:00 | Oh, Chan-Yeong v Matsuo, Yuki | 6-1,6-1 |
| Challenger Seoul | 2017/05/08 07:10 | Vasek Pospisil v Doumbia, Sadio | 6-3,6-2 |
| Challenger Gimcheon | 2017/05/01 03:45 | Doumbia, Sadio v Kravchuk, Konstantin | 4-6,2-6 |
| Challenger Anning Qual | 2017/04/24 02:00 | Doumbia, Sadio v Felix Auger Aliassime | 2-6,7-6,4-6 |
| Challenger Anning Qual | 2017/04/23 02:00 | Doumbia, Sadio v Withrow, Jackson | 6-1,6-4 |
| Challenger Qingdao | 2017/04/19 03:00 | Doumbia, Sadio v Wu, Di | 6-1,4-6,1-6 |
| Challenger Qingdao | 2017/04/17 04:10 | Doumbia, Sadio v He, Yecong | 6-1,6-3 |
| Challenger Quimper Qual | 2017/01/28 14:25 | Calvin Hemery v Doumbia, Sadio | 6-4,6-2 |
| Bangkok-2, Thailand | 2017/01/11 04:40 | Tipsarevic, Janko v Doumbia, Sadio | 6-3,6-1 |