Stadium: Indoor Court 6 Round: 45 Ground: Hardcourt outdoor
| ITF W60 Launceston | 2019/01/28 04:25 | Risa Ushijima v Erika Sema | 2-6,2-6 |
| ITF Women Nishi-Tama | 2017/03/23 03:20 | Risa Ushijima v Erika Sema | 6-4,2-6,1-6 |
| ITF W25 Osaka | 2019/02/27 05:55 | Risa Ushijima v Su Jeong Jang | 1-6,4-6 |
| ITF W60 Kyoto | 2019/02/18 01:00 | Dasha Lopatetskaya v Risa Ushijima | 6-3,6-1 |
| ITF W60 Launceston | 2019/01/28 04:25 | Risa Ushijima v Erika Sema | 2-6,2-6 |
| ITF W60 Burnie | 2019/01/21 00:15 | Risa Ushijima v Maddison Inglis | 4-6,1-6 |
| ITF W25 Singapore | 2019/01/14 02:00 | Risa Ushijima v Victoria Rodriguez | 4-6,5-7 |
| ITF Women Hamamatsu | 2018/10/18 03:30 | Risa Ushijima v Mei Yamaguchi | 1-6,1-6 |
| ITF Women Hamamatsu | 2018/10/17 01:00 | Risa Ushijima v Michika Ozeki | 6-3,2-6,6-3 |
| ITF Women Nanao | 2018/08/30 03:00 | Risa Ushijima v Himeno Sakatsume | 3-6,5-7 |
| ITF W25 Osaka | 2019/02/25 01:00 | Erika Sema v Rutuja Bhosale | 6-1,3-6,3-10 |
| ITF W60 Kyoto | 2019/02/18 05:40 | Megumi Nishimoto v Erika Sema | 6-3,6-4 |
| ITF W60 Launceston | 2019/01/28 07:00 | Maddison Inglis v Erika Sema | 6-3,1-6,10-5 |
| ITF W60 Launceston | 2019/01/28 04:25 | Risa Ushijima v Erika Sema | 2-6,2-6 |
| ITF W25 Singapore | 2019/01/22 02:00 | Aldila Sutjiadi v Erika Sema | 6-0,6-4 |
| ITF W25 Singapore | 2019/01/21 02:00 | Paige Mary Hourigan v Erika Sema | 2-6,7-5,6-10 |
| ITF W25 Singapore | 2019/01/14 02:00 | Erika Sema v Junri Namigata | 6-3,5-7,7-10 |
| ITF W25 Hong Kong | 2019/01/07 02:00 | Sofia Shapatava v Erika Sema | 6-2,2-6,10-8 |