Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| Kashiwa, Qualifications Simples W-ITF-JPN-07A | 2019/04/02 03:20 | Momoko Kobori v Hibi, Mayo | 2-6,2-6 |
| ITF W60 Berkeley | 2019/07/21 21:30 | Brengle, Madison v Hibi, Mayo | 7-5,6-4 |
| ITF W60 Berkeley | 2019/07/20 18:00 | Hibi, Mayo v Sachia Vickery | 6-3,6-0 |
| ITF W60 Berkeley | 2019/07/19 17:00 | Na-Lae Han v Hibi, Mayo | 5-7,4-6 |
| ITF W60 Berkeley | 2019/07/18 21:15 | Hibi, Mayo v Xiaodi You | 4-6,7-5,6-1 |
| ITF W60 Berkeley | 2019/07/16 21:55 | Zhang, Yuxuan v Hibi, Mayo | 3-6,3-6 |
| Honolulu, Simples W-ITF-USA-20A | 2019/07/12 20:00 | Hibi, Mayo v Usue Maitane Arconada | 3-6,3-6 |
| Honolulu, Simples W-ITF-USA-20A | 2019/07/11 20:35 | Arina Rodionova v Hibi, Mayo | 1-6,2-6 |
| Honolulu, Simples W-ITF-USA-20A | 2019/07/10 02:25 | Hibi, Mayo v Namigata, Junri | 6-4,6-1 |
| Gatineau, Singles W-ITF-CAN-04A | 2019/07/17 17:40 | Momoko Kobori v Marcela Zacarias | 5-7,2-6 |
| ITF W25 Saskatoon | 2019/07/11 16:00 | Momoko Kobori v Hanna Chang | 3-6,3-6 |
| ITF W25 Saskatoon | 2019/07/09 17:30 | Momoko Kobori v Isabelle Boulais | 7-6,1-6,6-4 |
| Jakarta, Singles Qualifying W-ITF-INA-01A | 2019/06/22 03:00 | Arianne Hartono v Momoko Kobori | 6-3,6-1 |
| Jakarta, Singles Qualifying W-ITF-INA-01A | 2019/06/21 02:00 | Imanishi, Miharu v Momoko Kobori | 6-1,5-7,0-6 |
| Jakarta, Singles Qualifying W-ITF-INA-01A | 2019/06/20 03:00 | Michika Ozeki v Momoko Kobori | 4-6,2-6 |
| Jakarta, Singles Qualifying W-ITF-INA-01A | 2019/06/19 04:00 | Olivia Tjandramulia v Momoko Kobori | 2-6,4-6 |
| Hengyang, Singles W-ITF-CHN-11A | 2019/06/12 03:55 | Sun, Ziyue v Momoko Kobori | 7-5,6-1 |