Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF W25 Osaka | 2019/02/27 01:00 | Mio Kozaki v Miharu Imanishi | 0-6,0-6 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Ayumi Miyamoto v Mio Kozaki | 6-2,6-3 |
| ITF W25 Kofu | 2019/03/22 01:00 | Mayo Hibi v Stephanie Wagner | 6-1,3-6,2-6 |
| ITF W25 Kofu | 2019/03/21 02:00 | Jana Cepelova v Mayo Hibi | 1-6,5-7 |
| ITF W25 Kofu | 2019/03/20 05:15 | Mayo Hibi v Jodie Anna Burrage | 6-0,4-6,6-2 |
| ITF W25 Nishi-Tama | 2019/03/14 02:40 | Ayano Shimizu v Mayo Hibi | 6-2,6-3 |
| ITF W25 Nishi-Tama | 2019/03/13 05:05 | Mayo Hibi v Francesca Jones | 6-4,6-0 |
| ITF W25 Yokohama | 2019/03/07 05:10 | Naho Sato v Mayo Hibi | 6-3,6-4 |
| ITF W25 Yokohama | 2019/03/06 06:15 | Risa Ozaki v Mayo Hibi | 6-3,3-6,2-6 |
| WTA Indian Wells | 2019/02/25 18:00 | Mayo Hibi v Ena Shibahara | 6-2,3-6,4-6 |