Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Manacor | 2020/01/27 09:30 | Jerricka Boone v Ayumi Koshiishi | 4-6,4-6 |
| ITF W15 Manacor | 2020/01/26 12:00 | Nina Ugrelidze v Ayumi Koshiishi | 1-6,2-6 |
| ITF W15 Manacor | 2020/01/23 15:15 | Ayumi Koshiishi v Celia Cervino Ruiz | 0-6,6-7 |
| ITF W15 Manacor | 2020/01/23 12:00 | Ayumi Koshiishi v Kathleen Kanev | 6-4,6-1 |
| ITF W15 Manacor | 2020/01/22 16:30 | Ayumi Koshiishi v Haine Ogata | 6-1,6-3 |
| 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 W15 Stuttgart | 2020/01/21 10:40 | Denisa Hindova v Fiona Ganz | 7-6,6-2 |
| ITF W15 Antalya | 2019/11/08 08:25 | Fiona Ganz v Shiho Akita | 1-6,1-6 |
| ITF W15 Antalya | 2019/11/07 07:00 | Fiona Ganz v Gabriela Nicole Tatarus | 6-3,6-3 |
| ITF W15 Antalya | 2019/11/06 07:00 | Fiona Ganz v Paula Arias Manjon | 6-4,6-3 |
| ITF W15 Antalya | 2019/10/31 07:00 | Viktoriia Dema v Fiona Ganz | 6-2,2-6,6-1 |
| ITF W15 Antalya | 2019/10/29 07:00 | Arina Gabriela Vasilescu v Fiona Ganz | 6-0,4-6,2-6 |
| ITF W15 Antalya | 2019/10/08 08:30 | Fiona Ganz v Jenny Duerst | 1-6,6-7 |
| ITF W15 Antalya | 2019/10/04 07:00 | Fiona Ganz v Anja Wildgruber | 6-7,2-6 |