| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | Chihiro Takayama v Ah Song | 2-6,4-6 |
| ITF Women Gyeongsan Qual | 2018/06/10 02:00 | Ah Song v Nagomi Higashitani | 7-5,4-6,7-5 |
| ITF Women Sangju | 2018/06/06 01:00 | Ah Song v Ju-Eun Kim | 4-6,2-6 |
| ITF Women Incheon Qual | 2018/05/14 02:00 | Varvara Flink v Ah Song | 6-1,6-0 |
| ITF Women Incheon Qual | 2018/05/13 03:30 | Ah Song v Yubean Lee | 6-4,1-6,6-1 |
| ITF Women Goyang Qual | 2018/05/07 02:30 | Yexin Ma v Ah Song | 6-3,3-6,6-0 |
| ITF Women Yeongwol | 2017/08/28 01:00 | Jeongyun Lee v Ah Song | 6-1,6-2 |
| ITF Women Yeongwol | 2017/08/27 01:00 | Eun Ji Lee v Ah Song | 4-6,5-7 |
| ITF Women Kurume Qual | 2018/05/13 06:55 | Ange Oby Kajuru v Haine Ogata | 6-3,1-6,6-4 |
| ITF Women Cairo | 2018/05/10 07:30 | Gergana Topalova v Haine Ogata | 6-4,6-1 |
| ITF Women Cairo | 2018/05/09 11:25 | Haine Ogata v Sem Wensveen | 6-0,6-3 |
| ITF Women Cairo | 2018/05/02 08:50 | Haine Ogata v Anna Ureke | 3-6,1-6 |
| ITF Women Cairo | 2018/04/30 07:30 | Haine Ogata v Alexa Pitt | 6-2,6-0 |
| ITF Women Cairo | 2018/04/23 08:00 | Haine Ogata v Estella Jaeger | 4-6,7-6,2-6 |
| ITF Women Cairo | 2018/04/22 10:30 | Haine Ogata v Aya El Sayed | 6-3,6-2 |
| ITF Women Osaka Qual | 2018/04/08 01:00 | Haine Ogata v Makoto Ninomiya | 2-6,3-6 |