Stadium: Court 6 Round: 28 Ground: Hardcourt outdoor
| ITF W15 Antalya WD | 2021/02/19 09:00 | Koshiishi/Sakatsume v Gonzalez/Lizarazo | 1-6,7-5,6-10 |
| ITF W15 Antalya WD | 2021/02/09 13:50 | Bosio/Martins v Koshiishi/Sakatsume | 6-1,6-2 |
| ITF W15 Antalya WD | 2021/02/04 11:30 | Arshinkova/Topalova v Koshiishi/Sakatsume | 6-2,7-6 |
| ITF W15 Antalya WD | 2021/02/04 11:00 | Arshinkova/Topalova v Koshiishi/Sakatsume | 6-2,7-6 |
| ITF W25 Kyoto WD | 2019/09/03 04:00 | Koshiishi/Sakatsume v Imanishi/Kajitani | 2-6,7-6,5-10 |
| ITF W25 Nanao WD | 2019/08/28 06:30 | Koshiishi/Sakatsume v Abe/Nagata | 3-6,1-6 |
| ITF W25 Nonthaburi WD | 2019/07/30 08:45 | Parnaby/Yang v Koshiishi/Sakatsume | 7-5,7-5 |
| ITF W25 Daegu WD | 2019/06/04 07:00 | Choi/Han v Koshiishi/Sakatsume | 7-6,6-1 |