Stadium: Court 3 Round: 25
| ITF Women Toyota Qual | 2017/11/12 03:05 | Na Ri Kim v Ayumi Koshiishi | 6-3,6-2 |
| ITF Women Tokyo Qual | 2017/11/05 02:55 | Ayumi Koshiishi v Naomi Cheong | 6-7,1-6 |
| ITF Women Tokyo Qual | 2017/11/04 05:35 | Ayumi Koshiishi v Mitsumi Kawasaki | 6-4,5-7,6-4 |
| ITF Women Hamamatsu | 2017/10/18 02:30 | Momoko Kobori v Ayumi Koshiishi | 7-6,6-3 |
| ITF Women Hamamatsu Qual | 2017/10/17 06:00 | Mami Hasegawa v Ayumi Koshiishi | 2-6,6-3,6-7 |
| ITF Women Hamamatsu Qual | 2017/10/16 02:00 | Aoiko Goto v Ayumi Koshiishi | 0-6,2-6 |
| ITF Women Hamamatsu Qual | 2017/10/14 00:00 | Makoto Yamaguchi v Ayumi Koshiishi | 1-6,4-6 |
| ITF Women Makinohara | 2017/10/12 03:20 | Miyabi Inoue v Ayumi Koshiishi | 6-4,6-2 |
| ITF Women Shenzhen Qual | 2017/11/07 02:00 | Ingrid Neel v So-Ra Lee | 6-2,6-1 |
| ITF Women Shenzhen Qual | 2017/11/06 04:45 | So-Ra Lee v Chengyiyi Yuan | 6-1,6-2 |
| ITF Women Shenzhen Qual | 2017/11/05 07:10 | So-Ra Lee v Qianxin Kong | 6-0,6-2 |
| WTA Seoul Qual | 2017/09/16 02:00 | Karolina Muchova v So-Ra Lee | 6-2,6-4 |
| ITF Women Yeongwol | 2017/09/08 01:00 | So-Ra Lee v Na Ri Kim | 2-6,0-6 |
| ITF Women Yeongwol | 2017/09/07 02:25 | So-Ra Lee v Jeongyun Lee | 6-3,6-4 |
| ITF Women Yeongwol | 2017/09/05 02:00 | Andrea Ka v So-Ra Lee | 6-2,5-7,3-6 |
| ITF Women Yeongwol | 2017/09/01 01:00 | So-Ra Lee v Hanna Chang | 4-6,4-6 |