Round: 25 Ground: Hardcourt outdoor
| ITF Women Hamamatsu | 2017/10/18 02:30 | Momoko Kobori v Ayumi Koshiishi | 7-6,6-3 |
| ITF Women Noto | 2016/09/01 02:40 | Ayumi Koshiishi v Momoko Kobori | 1-6,0-6 |
| ITF W15 Hinode | 2023/03/26 00:30 | Natsumi Kawaguchi v Ayumi Koshiishi | 6-1,6-2 |
| ITF W15 Hinode | 2023/03/24 00:00 | Yuka Hosoki v Ayumi Koshiishi | 7-5,2-6,0-6 |
| ITF W15 Hinode | 2023/03/23 02:35 | Chisa Hosonuma v Ayumi Koshiishi | 2-6,1-6 |
| ITF W15 Hinode | 2023/03/22 01:00 | Momoko Nishio v Ayumi Koshiishi | 4-6,6-7 |
| ITF W15 Kuching | 2023/03/05 01:30 | Hanyu Guo v Ayumi Koshiishi | 7-5,2-6,1-6 |
| ITF W15 Kuching | 2023/03/04 01:30 | Shuo Feng v Ayumi Koshiishi | 0-6,1-6 |
| ITF W15 Kuching | 2023/03/03 01:30 | Ayumi Koshiishi v Aoi Ito | 6-1,7-6 |
| ITF W15 Kuching | 2023/03/02 01:30 | Ayumi Koshiishi v Kisa Yoshioka | 6-3,6-2 |
| ITF W60 Astana | 2023/03/08 04:00 | Momoko Kobori v Anastasia Tikhonova | 5-7,1-6 |
| ITF W60 Astana | 2023/03/07 04:00 | Momoko Kobori v Ekaterina Kazionova | 1-6,6-4,7-6 |
| ITF W60 Astana | 2023/03/06 04:00 | Momoko Kobori v Linda Klimovicova | 4-6,6-4,7-5 |
| ITF W40 Astana | 2023/03/01 05:35 | Kristina Mladenovic v Momoko Kobori | 6-0,6-0 |
| ITF W40 Astana | 2023/02/28 04:00 | Momoko Kobori v Ekaterina Yashina | 6-2,6-4 |
| ITF W40 Astana | 2023/02/27 09:30 | Momoko Kobori v Ilay Yoruk | 6-7,6-0,6-3 |
| ITF W60 Kyoto | 2022/12/23 01:00 | Momoko Kobori v Yuriko Lily Miyazaki | 6-2,4-6,3-6 |
| ITF W60 Kyoto | 2022/12/22 00:55 | Momoko Kobori v Haruna Arakawa | 7-5,6-3 |