Stadium: Court 3 Round: 54 Ground: Hardcourt outdoor
| ITF Women Changwon Qual | 2018/05/22 04:05 | Chang Liu v Ayumi Koshiishi | 1-6,3-6 |
| ITF W25 Goyang | 2019/05/20 01:00 | Chang Liu v Jin Ju Lee | 6-4,6-1 |
| ITF W25 Changwon | 2019/05/16 02:35 | Chang Liu v Eunhye Lee | 4-6,1-6 |
| ITF W25 Changwon | 2019/05/14 04:35 | Dabin Kim v Chang Liu | 2-6,4-6 |
| ITF W60 Luan | 2019/05/07 02:00 | Paige Mary Hourigan v Chang Liu | 7-5,6-0 |
| ITF W60 Luan | 2019/05/06 03:05 | Yu-Chieh Hsieh v Chang Liu | 4-6,1-6 |
| ITF W25 Hong Kong | 2019/04/10 02:00 | Paige Mary Hourigan v Chang Liu | 0-6,6-3,6-2 |
| ITF W25 Hong Kong | 2019/04/09 02:00 | Chang Liu v Valentina Ivanov | 6-4,6-1 |
| ITF W15 Xiamen | 2019/03/23 02:00 | Meiqi Guo v Chang Liu | 6-2,2-6,6-3 |
| ITF W25 Goyang | 2019/05/20 01:00 | Hyeran Yun v Ayumi Koshiishi | 4-6,3-6 |
| ITF W25 Changwon | 2019/05/14 01:00 | Ayumi Koshiishi v Dabin Oh | 6-3,3-6,5-10 |
| ITF W25 Changwon | 2019/05/13 01:00 | Ayumi Koshiishi v Si On Park | 6-0,6-1 |
| ITF W60 Fukuoka | 2019/05/06 01:00 | Mai Hontama v Ayumi Koshiishi | 3-6,6-3,10-2 |
| ITF W25 Hong Kong | 2019/04/08 02:00 | Ayumi Koshiishi v Mihika Yadav | 6-3,2-6,4-10 |
| ITF W25 Jackson | 2019/04/03 16:40 | Ayumi Koshiishi v Ann Li | 1-6,2-6 |
| ITF W25 Jackson | 2019/04/02 15:00 | Ayumi Koshiishi v Alesya Yakubovich | 6-3,6-2 |
| ITF W25 Canberra | 2019/03/25 00:00 | Ayumi Koshiishi v Yuuki Tanaka | 3-6,1-6 |