Stadium: Court A3 Round: 54 Ground: Hardcourt outdoor
| ITF Women Hamamatsu | 2018/10/14 00:00 | Ayumi Koshiishi v Yui Chikaraishi | 7-6,6-2 |
| ITF W25 Taipei | 2019/07/29 02:00 | Mana Kawamura v Yui Chikaraishi | 6-3,6-0 |
| ITF W25 Hong Kong | 2019/05/31 12:35 | Ho Ching Wu v Yui Chikaraishi | 7-5,6-0 |
| ITF W25 Hong Kong | 2019/05/30 07:05 | Yui Chikaraishi v Miharu Imanishi | 7-6,6-4 |
| ITF W25 Hong Kong | 2019/05/28 10:25 | Natalia Siedliska v Yui Chikaraishi | 3-6,2-6 |
| ITF W25 Hong Kong | 2019/05/27 09:30 | Yui Chikaraishi v Rina Saigo | 6-3,6-0 |
| ITF W25 Karuizawa | 2019/05/20 01:00 | Himeno Sakatsume v Yui Chikaraishi | 6-0,6-3 |
| ITF W25 Singapore | 2019/05/13 02:00 | Yui Chikaraishi v Rina Saigo | 2-6,0-6 |
| ITF Women Hamamatsu | 2018/10/14 00:00 | Ayumi Koshiishi v Yui Chikaraishi | 7-6,6-2 |
| ITF W25 Nonthaburi | 2019/07/30 02:30 | Yidi Yang v Ayumi Koshiishi | 6-0,6-2 |
| ITF W25 Nonthaburi | 2019/07/29 06:20 | Thasaporn Naklo v Ayumi Koshiishi | 3-6,4-6 |
| ITF W25 Nonthaburi | 2019/07/23 04:20 | Ayumi Koshiishi v Michika Ozeki | 2-6,4-6 |
| ITF W25 Nonthaburi | 2019/07/22 08:00 | Ho Ching Wu v Ayumi Koshiishi | 3-6,2-6 |
| ITF W15 Gimcheon | 2019/06/20 01:00 | Ayumi Koshiishi v Sunam Jeong | 2-6,6-7 |
| ITF W15 Gimcheon | 2019/06/19 01:00 | Ayumi Koshiishi v Honoka Kobayashi | 4-6,6-4,6-4 |
| ITF W15 Gimcheon | 2019/06/14 02:00 | Ayumi Koshiishi v Misaki Matsuda | 5-7,7-6,3-6 |
| ITF W15 Gimcheon | 2019/06/13 01:30 | Ayumi Koshiishi v Shou Na Mu | 7-5,6-3 |