Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF W60 Kyoto | 2019/02/21 04:00 | Momoko Kobori v Kai-Lin Zhang | 2-6,4-6 |
| ITF W60 Kyoto | 2019/02/19 04:10 | Abbie Myers v Momoko Kobori | 6-2,6-7,3-6 |
| ITF W60 Launceston | 2019/01/28 04:35 | Momoko Kobori v Isabelle Wallace | 1-6,4-6 |
| ITF W60 Launceston | 2019/01/28 01:10 | Momoko Kobori v Bojana Marinkovic | 4-6,6-2,10-4 |
| ITF W25 Hong Kong | 2019/01/10 02:00 | Momoko Kobori v Dasha Lopatetskaya | 3-6,3-6 |
| ITF W25 Hong Kong | 2019/01/08 04:15 | Momoko Kobori v Haruka Kaji | 6-3,6-0 |
| ITF W25 Hong Kong | 2019/01/02 02:00 | Momoko Kobori v Eudice Chong | 4-6,5-7 |
| WTA Taipei | 2018/11/11 02:00 | Su Jeong Jang v Momoko Kobori | 6-1,6-4 |
| WTA Indian Wells | 2019/02/25 18:00 | Mayo Hibi v Ena Shibahara | 6-2,3-6,4-6 |
| ITF W25 Rancho Santa Fe | 2019/02/20 18:00 | Sachia Vickery v Mayo Hibi | 6-3,6-4 |
| ITF W25 Surprise | 2019/02/15 17:30 | Hua-Chen Lee v Mayo Hibi | 6-1,6-1 |
| ITF W25 Surprise | 2019/02/13 20:35 | Carolina Alves v Mayo Hibi | 4-6,2-6 |
| ITF W100 Midland | 2019/01/29 19:00 | Mayo Hibi v Marie Bouzkova | 7-5,2-6,3-6 |
| WTA Newport Beach | 2019/01/23 18:00 | Mayo Hibi v Claire Liu | 2-6,1-6 |
| WTA Newport Beach | 2019/01/21 21:55 | Anna Danilina v Mayo Hibi | 4-6,4-6 |
| WTA Taipei | 2018/11/11 03:45 | Elena-Gabriela Ruse v Mayo Hibi | 7-6,2-6,6-4 |