stadio: Court 6 Round: 44 Ground: Hardcourt outdoor
| ITF Femminile Hong Kong | 2018/07/10 03:50 | Ayumi Koshiishi v Haine Ogata | 6-1,6-4 |
| ITF W15 Manacor | 2020/01/22 14:00 | Ayumi Koshiishi v Jillian Louise Roa | 6-2,6-1 |
| ITF W15 Hua Hin | 2019/10/10 03:00 | Patcharin Cheapchandej v Ayumi Koshiishi | 6-1,6-3 |
| ITF W15 Hua Hin | 2019/10/09 03:00 | Ayumi Koshiishi v Mananchaya Sawangkaew | 6-2,6-3 |
| ITF W25 Kyoto | 2019/09/05 05:30 | Ayumi Koshiishi v Michika Ozeki | 0-6,3-6 |
| ITF W25 Kyoto | 2019/09/04 04:25 | Miharu Imanishi v Ayumi Koshiishi | 3-6,4-6 |
| ITF W25 Kyoto | 2019/09/02 04:00 | Ayumi Koshiishi v Utaka Kishigami | 7-5,7-6 |
| ITF W25 Kyoto | 2019/09/02 00:00 | Ayumi Koshiishi v Hx Izabella Tan | 6-0,6-1 |
| ITF W25 Nanao | 2019/08/27 01:00 | Ayumi Koshiishi v Anri Nagata | 4-6,0-6 |
| ITF W15 Manacor | 2020/01/22 14:00 | Haine Ogata v Gloria Alogo Piqueras | 6-2,6-4 |
| ITF W15 Nonthaburi | 2019/12/02 02:30 | Da Hye Kim v Haine Ogata | 6-4,6-3 |
| ITF W15 Nonthaburi - Qual. | 2019/12/01 03:25 | Piyaphat Jongma v Haine Ogata | 0-6,1-6 |
| ITF W15 Antalya | 2019/11/21 07:00 | Haine Ogata v Ioana Gaspar | 5-7,2-6 |
| ITF W15 Antalya | 2019/11/20 10:30 | Haine Ogata v Reka Farbas | 6-2,6-2 |
| ITF W15 Antalya | 2019/11/19 07:00 | Haine Ogata v Elena Korokozidi | 6-7,6-3,11-9 |
| ITF W15 Antalya | 2019/11/13 09:50 | Haine Ogata v Lyubov Kostenko | 4-6,1-6 |
| ITF W15 Hua Hin | 2019/10/16 03:00 | Olga Helmi v Haine Ogata | 6-3,6-4 |