Stadium: Court 3 Round: 54 Ground: Hardcourt outdoor
| ITF W15 Gimcheon | 2019/06/19 01:00 | Ayumi Koshiishi v Honoka Kobayashi | 4-6,6-4,6-4 |
| ITF W75 Toronto | 2024/10/30 16:45 | Kayla Cross v Ayumi Koshiishi | 6-4,6-2 |
| ITF W75 Toronto | 2024/10/28 15:30 | Ayumi Koshiishi v Viktoria Morvayova | 6-0,2-6,7-6 |
| ITF W75 Toronto | 2024/10/27 19:45 | Ayumi Koshiishi v Camille Kiss | 6-1,6-0 |
| ITF W75 Saguenay | 2024/10/24 19:20 | Ayumi Koshiishi v Stacey Fung | 1-6,2-6 |
| ITF W75 Saguenay | 2024/10/23 19:00 | Lucija Ciric Bagaric v Ayumi Koshiishi | 6-3,4-6,6-7 |
| ITF W75 Saguenay | 2024/10/21 16:00 | Ayumi Koshiishi v Love-Star Alexis | 6-1,6-1 |
| ITF W75 Saguenay | 2024/10/20 19:45 | Ayumi Koshiishi v Clemence Mercier | 6-2,3-6,6-2 |
| ITF W75 Calgary | 2024/10/18 00:00 | Ayumi Koshiishi v Rebecca Marino | 3-6,2-6 |
| UTR Pro Kawaguchi Women | 2024/11/16 01:30 | Ayumi Miyamoto v Honoka Kobayashi | 2-6,6-7 |
| UTR Pro Kawaguchi Women | 2024/11/15 04:30 | Nagomi Higashitani v Honoka Kobayashi | 2-6,2-6 |
| UTR Pro Kawaguchi Women | 2024/11/14 01:30 | Michiru Furuya v Honoka Kobayashi | 5-7,3-6 |
| UTR Pro Kawaguchi Women | 2024/11/12 00:00 | Ayaka Ozeki v Honoka Kobayashi | 1-6,3-6 |
| UTR Pro Kawaguchi Women | 2024/11/11 05:20 | Honoka Kobayashi v Rina Komatsu | 6-1,6-0 |
| ITF W35 Hamamatsu | 2024/11/06 02:40 | Chengyiyi Yuan v Honoka Kobayashi | 6-1,6-2 |
| ITF W35 Hamamatsu | 2024/11/04 03:05 | Honoka Kobayashi v Yuka Hosoki | 6-3,6-2 |
| ITF W35 Hamamatsu | 2024/11/03 01:00 | Honoka Kobayashi v Madeleine Jessup | 6-2,6-3 |