Stadium: Court B1 輪: 54 Ground: Hardcourt outdoor
| ITF W15金泉 | 2019/06/18 01:00 | 細沼千紗 v Jeongyun Lee | 2-6,4-6 |
| ITF W15金泉 | 2019/06/17 01:00 | 細沼千紗 v SinHee Kim | 6-3,6-3 |
| ITF W25輕井澤 | 2019/05/21 04:30 | 森崎可南子 v 細沼千紗 | 6-3,6-2 |
| ITF W25輕井澤 | 2019/05/20 01:00 | 西里喜行 v 細沼千紗 | 1-6,4-6 |
| ITF W60久留米 | 2019/05/13 01:55 | 細沼千紗 v 埃納 Shibahara | 2-6,3-6 |
| ITF W15坎昆 | 2019/03/19 19:00 | 馬加裏•科姆普恩 v 細沼千紗 | 6-3,6-2 |
| ITF W15坎昆 | 2019/03/16 13:30 | Maria Camila Osorio v 細沼千紗 | 6-3,6-1 |
| ITF W15坎昆 | 2019/03/15 13:00 | 細沼千紗 v 柯爾絲頓•安德裏亞•威登 | 6-4,6-2 |
| ITF W15華欣 | 2019/07/09 02:30 | Honoka Kobayashi v Lunda Kumhom | 2-6,2-6 |
| ITF W15華欣 | 2019/07/08 03:25 | Honoka Kobayashi v Thitirat Kanaphuet | 6-0,6-0 |
| ITF W15華欣 | 2019/07/03 04:00 | Da Hye Kim v Honoka Kobayashi | 6-3,6-4 |
| ITF W15華欣 | 2019/07/02 03:00 | Honoka Kobayashi v Mingyang Liu | 6-3,6-0 |
| ITF W15華欣 | 2019/07/01 03:00 | Honoka Kobayashi v 莎拉 Pang | 6-0,6-0 |
| ITF W15金泉 | 2019/06/19 01:00 | Ayumi Koshiishi v Honoka Kobayashi | 4-6,6-4,6-4 |
| ITF W15金泉 | 2019/06/18 01:00 | Honoka Kobayashi v 高山千尋 | 6-1,6-1 |
| ITF W15金泉 | 2019/06/17 01:00 | Honoka Kobayashi v So Hee Jung | 2-6,7-5,11-9 |