Stadium: Court 10 Round: 28 Ground: Grass
| ITF W25 - Karuizawa | 2019/05/24 01:00 | Momoko Kobori v Mai Hontama | 6-4,1-6,7-5 |
| ITF W25 - Karuizawa | 2019/05/22 02:30 | Momoko Kobori v Ena Shibahara | 3-6,7-5,6-3 |
| ITF W60 - Kurume | 2019/05/15 03:25 | Naho Sato v Momoko Kobori | 6-2,6-1 |
| ITF W60 - Fukuoka | 2019/05/09 03:20 | Momoko Kobori v Emina Bektas | 6-7,1-6 |
| ITF W60 - Fukuoka | 2019/05/07 01:00 | Momoko Kobori v Kaylah McPhee | 6-4,3-6,6-3 |
| ITF W80 - Gifu | 2019/05/01 01:00 | Momoko Kobori v Yue Yuan | 6-7,0-6 |
| ITF W25 - Hongkong | 2019/04/14 02:00 | Maddison Inglis v Momoko Kobori | 6-2,5-7,6-4 |
| ITF W25 - Hongkong | 2019/04/12 09:30 | Momoko Kobori v Mai Hontama | 6-0,7-6 |
| ITF W25 - Karuizawa | 2019/05/24 01:00 | Naomi Broady v Erina Hayashi | 3-6,2-6 |
| ITF W25 - Karuizawa | 2019/05/23 01:00 | Erina Hayashi v Kanako Morisaki | 7-5,6-4 |
| ITF W25 - Karuizawa | 2019/05/22 02:25 | Himeno Sakatsume v Erina Hayashi | 6-2,6-7,1-6 |
| ITF W25 - Karuizawa | 2019/05/21 04:00 | Erina Hayashi v Hiromi Abe | 6-2,6-3 |
| ITF W25 - Karuizawa | 2019/05/20 01:00 | Erina Hayashi v Aoi Ishino | 6-2,6-0 |
| ITF W60 - Kurume | 2019/05/13 01:50 | Erina Hayashi v Ramu Ueda | 3-6,6-1,8-10 |
| ITF W60 - Fukuoka | 2019/05/06 06:10 | Erina Hayashi v Leonie Kung | 3-6,6-7 |
| ITF W60 - Fukuoka | 2019/05/06 02:05 | Tara Moore v Erina Hayashi | 6-2,1-6,6-10 |