Stadium: Court 8 Round: 45 Ground: Hardcourt outdoor
| Shenzhen, Simples W-ITF-CHN-26A | 2019/11/04 03:50 | Erina Hayashi v Diane Parry | 3-6,4-6 |
| ITF W60 Playford | 2019/10/29 02:40 | Erina Hayashi v Myers, Abbie | 6-3,1-6,1-6 |
| ITF W60 Bendigo | 2019/10/22 23:00 | Erina Hayashi v Tomic, Sara | 6-7,0-6 |
| ITF W60 Bendigo | 2019/10/21 23:00 | Erina Hayashi v Laura Ashley | 4-6,6-1,6-10 |
| ITF W60 Bendigo | 2019/10/20 23:00 | Erina Hayashi v Ah San, Noelleda | 6-1,6-2 |
| ITF W25 Makinohara | 2019/10/11 00:30 | Paula Badosa v Erina Hayashi | 6-1,4-6,6-1 |
| ITF W25 Makinohara | 2019/10/10 02:35 | Eri Shimizu v Erina Hayashi | 5-7,1-6 |
| ITF W25 Makinohara | 2019/10/09 02:10 | Honoka Kobayashi v Erina Hayashi | 2-6,4-6 |
| Nanning, Singles W-ITF-CHN-24A | 2019/10/21 03:30 | Wushuang Zheng v Choi, Ji-Hee | 6-3,2-6,10-7 |
| Nanning, Singles W-ITF-CHN-24A | 2019/10/20 03:55 | Choi, Ji-Hee v Yang, Ziyi | 7-6,6-1 |
| WTA Seoul | 2019/09/16 04:45 | Choi, Ji-Hee v Pliskova, Kristyna | 1-6,4-6 |
| ITF W15 Yeongwol | 2019/09/08 01:30 | Dayeon Back v Choi, Ji-Hee | 7-5,3-6,2-6 |
| ITF W15 Yeongwol | 2019/09/07 05:30 | I-Hsuan Cho v Choi, Ji-Hee | 6-4,4-6,4-6 |
| ITF W15 Yeongwol | 2019/09/06 01:00 | Choi, Ji-Hee v Kim, Da Hye | 6-3,2-6,6-1 |
| ITF W15 Yeongwol | 2019/09/05 01:30 | Choi, Ji-Hee v Park, Eunyeong | 6-2,6-2 |
| ITF W15 Yeongwol | 2019/09/04 03:00 | Choi, Ji-Hee v Jang, Eun SE | 6-1,6-4 |