| ITF Women Kashiwa Qual | 2017/04/02 04:00 | Kotomi Takahata v Seung-Yeon Hong | 6-4,6-3 |
| ITF Women Kofu Qual | 2017/03/27 04:00 | Seung-Yeon Hong v Ayumi Miyamoto | 4-6,4-6 |
| ITF Women Kofu Qual | 2017/03/25 03:30 | Seung-Yeon Hong v Michiru Furuya | 4-6,6-1,6-0 |
| WTA Seoul Qual | 2016/09/18 02:00 | Oksana Kalashnikova v Seung-Yeon Hong | 6-1,6-3 |
| WTA Seoul Qual | 2016/09/17 04:20 | Ayaka Okuno v Seung-Yeon Hong | 6-4,3-6,0-6 |
| ITF Women Yeongwol | 2016/09/08 01:00 | Seung-Yeon Hong v Sang Hee Park | 0-6,3-6 |
| ITF Women Yeongwol | 2016/09/07 01:00 | Seung-Yeon Hong v Hae-Sung Kim | 6-2,6-3 |
| ITF Women Yeongwol | 2016/09/04 03:50 | Dabin Kim v Seung-Yeon Hong | 5-7,3-6 |
| ITF Women Irapuato | 2017/04/15 00:40 | Mari Osaka v Michaela Honcova | 4-6,6-7 |
| ITF Women Irapuato | 2017/04/15 00:37 | Mari Osaka v Michaela Honcova | 4-6,6-7 |
| ITF Women Irapuato | 2017/04/13 18:00 | Jovana Jaksic v Mari Osaka | 6-4,2-6,5-7 |
| ITF Women Irapuato | 2017/04/11 19:40 | Brynn Boren v Mari Osaka | 3-6,2-6 |
| ITF Women Kashiwa Qual | 2017/04/03 00:30 | Mari Osaka v Miyabi Inoue | 7-6,3-6,5-7 |
| ITF Women Kashiwa Qual | 2017/04/02 01:00 | Miharu Imanishi v Mari Osaka | 2-6,3-6 |
| ITF Women Kofu | 2017/03/29 03:10 | Mari Osaka v Eri Hozumi | 4-6,4-6 |
| ITF Women Kofu Qual | 2017/03/27 04:00 | Kei Kato v Mari Osaka | 0-6,1-6 |