Stadium: Court 4 - CC Round: 27 Ground: Hardcourt outdoor
| ITF Women Hong Kong | 2018/01/04 02:00 | Risa Ushijima v Hiroko Kuwata | 2-6,0-6 |
| ITF Women Hong Kong | 2017/12/27 04:05 | Hiroko Kuwata v Risa Ushijima | 6-0,6-3 |
| ITF W25 Jakarta | 2019/06/20 03:00 | Hiroko Kuwata v Erika Sema | 6-4,0-6,6-4 |
| ITF W25 Jakarta | 2019/06/19 03:20 | Hiroko Kuwata v Jessy Rompies | 6-2,1-6,7-5 |
| ITF W60 Kurume | 2019/05/15 02:35 | Hiroko Kuwata v Ena Shibahara | 7-5,0-6,2-6 |
| ITF W60 Fukuoka | 2019/05/08 02:55 | Leonie Kung v Hiroko Kuwata | 6-3,6-2 |
| ITF W80 Gifu | 2019/04/30 01:00 | Hiroko Kuwata v Xinyun Xinyun Han | 3-6,2-6 |
| WTA Anning | 2019/04/22 04:40 | Kai-Lin Zhang v Hiroko Kuwata | 7-6,6-3 |
| ITF W80 Dothan | 2019/04/16 18:50 | Hiroko Kuwata v Deniz Khazaniuk | 3-6,4-6 |
| WTA Bogota | 2019/04/10 15:30 | Hiroko Kuwata v Sachia Vickery | 4-6,2-6 |
| ITF W25 Jakarta | 2019/06/20 04:50 | Risa Ushijima v Abigail Tere-Apisah | 7-5,2-6,6-1 |
| ITF W25 Jakarta | 2019/06/19 02:00 | Chompoothip Jandakate v Risa Ushijima | 3-6,3-6 |
| ITF W25 Luzhou | 2019/05/31 03:40 | Fang Ying Xun v Risa Ushijima | 6-1,6-2 |
| ITF W25 Luzhou | 2019/05/30 02:30 | Jiahui Chen v Risa Ushijima | 5-7,1-6 |
| ITF W25 Luzhou | 2019/05/28 05:30 | Risa Ushijima v Meiling Wang | 6-4,6-3 |
| ITF W25 Karuizawa | 2019/05/21 07:35 | Emina Bektas v Risa Ushijima | 7-5,6-1 |
| ITF W60 Kurume | 2019/05/13 00:30 | Risa Ushijima v Himeno Sakatsume | 1-6,2-6 |
| ITF W60 Fukuoka | 2019/05/06 05:00 | Mai Hontama v Risa Ushijima | 6-3,6-3 |