Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF Women Hamamatsu | 2018/10/14 00:00 | Kanako Osafune v Minami Shuto | 6-7,2-6 |
| ITF Women Kyoto | 2018/09/05 01:00 | Kanako Osafune v Mitsumi Kawasaki | 4-6,6-7 |
| ITF Women Taipei | 2018/07/23 03:00 | Yi Tsen Cho v Kanako Osafune | 3-6,6-2,7-6 |
| ITF Women Kofu Qual | 2018/06/09 04:00 | Hikaru Sato v Kanako Osafune | 6-3,6-2 |
| ITF Women Kofu Qual | 2018/06/09 00:00 | Sumire Ri v Kanako Osafune | 4-6,1-6 |
| ITF Women Sharm El Sheikh | 2018/04/08 08:00 | Barbora Miklova v Kanako Osafune | 6-3,6-2 |
| ITF Women Sharm El Sheikh | 2018/04/01 08:00 | Barbora Miklova v Kanako Osafune | 6-4,6-3 |
| ITF Women Sharm El Sheikh | 2018/03/26 08:00 | Kanako Osafune v Bhuvana Kalva | 2-6,4-6 |
| ITF W15 Tabarka | 2019/04/04 11:45 | Margarita Lazareva v Satsuki Koike | 6-0,6-4 |
| ITF W15 Tabarka | 2019/04/02 13:25 | Nicole Gadient v Satsuki Koike | 5-7,1-6 |
| ITF W15 Tabarka | 2019/04/01 14:30 | Satsuki Koike v Pauline Demel | 6-0,6-2 |
| ITF W15 Tabarka | 2019/03/29 09:00 | Alice Rame v Satsuki Koike | 6-3,6-4 |
| ITF W15 Tabarka | 2019/03/28 12:15 | Satsuki Koike v Chantal Skamlova | 6-1,6-2 |
| ITF W15 Tabarka | 2019/03/27 13:00 | Astrid Wanja Brune Olsen v Satsuki Koike | 2-6,6-2,4-6 |
| ITF W15 Tabarka | 2019/03/25 15:00 | Satsuki Koike v Giulia Brighi | 7-5,6-0 |
| ITF W15 Tabarka | 2019/03/25 10:00 | Satsuki Koike v Susan Doldan | 6-0,6-2 |