Stadium: Court C Round: 45 Ground: Hardcourt indoor
| ITF W25 Nanao | 2019/08/25 03:00 | Misaki Matsuda v Chisa Hosonuma | 6-3,6-0 |
| ITF W25 Nanao | 2019/08/25 01:00 | Azusa Yasaki v Chisa Hosonuma | 2-6,0-6 |
| ITF W25 Tsukuba | 2019/08/20 00:30 | Erika Sema v Chisa Hosonuma | 6-7,7-5,10-5 |
| ITF W25 Tsukuba | 2019/08/19 00:30 | Chisa Hosonuma v Honoka Kobayashi | 2-6,6-3,10-7 |
| ITF W15 Gimcheon | 2019/06/18 01:00 | Chisa Hosonuma v Jeongyun Lee | 2-6,4-6 |
| ITF W15 Gimcheon | 2019/06/17 01:00 | Chisa Hosonuma v SinHee Kim | 6-3,6-3 |
| ITF W25 Karuizawa | 2019/05/21 04:30 | Kanako Morisaki v Chisa Hosonuma | 6-3,6-2 |
| ITF W25 Karuizawa | 2019/05/20 01:00 | Kiko Nishizato v Chisa Hosonuma | 1-6,4-6 |
| ITF W25 Nanao | 2019/08/26 02:25 | Misaki Matsuda v Ikumi Yamazaki | 7-6,3-6,10-5 |
| ITF W15 Gimcheon | 2019/06/17 02:55 | Ikumi Yamazaki v Jiho Shin | 2-6,3-6 |
| ITF W25 Karuizawa | 2019/05/20 01:00 | Ikumi Yamazaki v Misaki Matsuda | 4-6,3-6 |
| ITF W15 Cairo | 2019/04/25 08:00 | Ikumi Yamazaki v Charlotte Roemer | 2-6,4-6 |
| ITF W15 Cairo | 2019/04/24 10:35 | Aya El Sayed v Ikumi Yamazaki | 4-6,4-6 |
| ITF W15 Cairo | 2019/04/22 08:00 | Chanel Janssen v Ikumi Yamazaki | 3-6,2-6 |
| ITF W15 Cairo | 2019/04/18 08:00 | Aya El Sayed v Ikumi Yamazaki | 7-6,6-7,7-6 |
| ITF W15 Cairo | 2019/04/17 10:15 | Hala Fouad v Ikumi Yamazaki | 0-6,1-6 |