Stadium: Court 7 Round: 54 Ground: Hardcourt outdoor
| ITF W35 Changwon | 2024/05/26 01:00 | Jeong Moon v Ayumi Koshiishi | 7-6,0-6,10-4 |
| ITF W50 Goyang | 2024/05/22 03:05 | Ayumi Koshiishi v Zongyu Li | 4-6,1-6 |
| ITF W50 Goyang | 2024/05/20 03:10 | Rina Saigo v Ayumi Koshiishi | 6-7,5-7 |
| ITF W75 Kurume | 2024/05/13 03:30 | Miho Kuramochi v Ayumi Koshiishi | 6-3,6-0 |
| ITF W75 Kurume | 2024/05/13 03:10 | Nanari Katsumi v Ayumi Koshiishi | 0-6,1-6 |
| ITF W75 Fukuoka | 2024/05/06 03:30 | Lisa-Marie Rioux v Ayumi Koshiishi | 6-1,6-3 |
| ITF W50 Wuning | 2024/04/24 01:55 | Qiang Wang v Ayumi Koshiishi | 6-2,6-1 |
| ITF W50 Wuning | 2024/04/22 03:15 | Ayumi Koshiishi v Jiayou Li | 6-4,6-1 |
| ITF W15 Yeongwol | 2023/08/30 02:40 | Yesung Choo v Dami Lee | 6-4,4-6,2-6 |