| ITF Women Nonthaburi | 07/09 02:00 | 25 | Aunchisa Chanta v Hiroko Kuwata | 7-6,4-6,2-6 | |
| ITF Women Naiman | 07/03 03:25 | 25 | Hiroko Kuwata v Gozal Ainitdinova | 2-6,6-2,5-7 | |
| ITF Women Hong Kong | 06/19 02:00 | 25 | Eudice Chong v Hiroko Kuwata | 1-6,6-4,7-5 | |
| ITF Women Singapore | 06/14 03:00 | 27 | [307] Haruka Kaji v Hiroko Kuwata [367] | 6-3,6-4 | |
| ITF Women Singapore | 06/13 03:00 | 26 | [367] Hiroko Kuwata v Pei-Chi Lee [465] | 6-1,6-4 | |
| ITF Women Singapore | 06/12 06:20 | 25 | [367] Hiroko Kuwata v So-Ra Lee [379] | 6-2,7-6 | |
| ITF Women Singapore | 06/09 03:00 | 29 | [335] Hiroko Kuwata v Jovana Jaksic [306] | 7-6,6-0 | |
| ITF Women Singapore | 06/08 04:15 | 28 | [379] Misa Eguchi v Hiroko Kuwata [335] | 6-2,5-7,3-6 | |
| ITF Women Singapore | 06/07 03:00 | 27 | [293] Mai Minokoshi v Hiroko Kuwata [335] | 1-6,1-6 | |
| ITF Women Singapore | 06/06 02:00 | 26 | [466] Victoria Muntean v Hiroko Kuwata [335] | 2-6,2-6 | |
| ITF Women Singapore | 06/04 02:00 | 25 | Ayumi Koshiishi v Hiroko Kuwata | 6-7,7-6,4-6 | |
| ITF Women Baotou | 05/23 08:30 | 25 | Meiqi Guo v Hiroko Kuwata | 6-3,6-4 | |
| ITF Women Kurume | 05/16 01:00 | 25 | [337] Hiroko Kuwata v Katy Dunne [219] | 3-6,6-1,1-6 | |
| ITF Women Fukuoka | 05/09 03:40 | 25 | Ivana Jorovic v Hiroko Kuwata | 6-2,7-6 | |
| ITF Women Gifu | 05/02 02:00 | 25 | [400] Kyoka Okamura v Hiroko Kuwata [340] | 6-4,6-4 | |
| ITF Women Gifu Qual | 04/30 01:00 | 54 | [339] Hiroko Kuwata v Erina Hayashi [322] | 6-2,7-6 | |
| ITF Women Gifu Qual | 04/29 04:20 | 54 | Hiroko Kuwata v Satsuki Koike | 6-4,6-1 | |
| ITF Women Gifu Qual | 04/29 01:00 | 54 | Hiroko Kuwata v Mitsumi Kawasaki | 6-0,7-6 | |
| WTA Zhengzhou Qual | 04/14 03:00 | 26 | Ankita Raina v Hiroko Kuwata | 6-3,6-1 | |
| ITF Women Osaka | 04/10 01:00 | 25 | [197] Ankita Raina v Hiroko Kuwata [339] | 6-4,6-0 | |
| ITF Women Kofu Qual | 03/26 03:20 | 62 | [300] Hiroko Kuwata v Kyoka Okamura [380] | 6-7,4-6 | |
| ITF Women Kofu Qual | 03/25 01:00 | 62 | Hiroko Kuwata v Karin Terami | 7-6,6-4 | |
| ITF Women Toyota Qual | 03/10 01:00 | 62 | Hiroko Kuwata v Makoto Ninomiya | 3-6,4-6 | |
| ITF Women Mildura | 03/07 03:45 | 25 | Anastasia Berezov v Hiroko Kuwata | 6-4,3-6,6-4 | |
| ITF Women Perth | 02/21 04:55 | 25 | Hiroko Kuwata v Irina Khromacheva | 0-6,3-6 | |
| ITF Women Perth | 02/14 06:20 | 25 | Hiroko Kuwata v Katy Dunne | 3-6,5-7 | |
| WTA Taipei Qual | 01/28 04:45 | 46 | Hiroko Kuwata v Junri Namigata | 6-4,3-6,2-6 | |
| WTA Taipei Qual | 01/27 05:40 | 45 | Eri Hozumi v Hiroko Kuwata | 1-6,6-7 | |
| ITF Women Hong Kong | 01/06 02:00 | 29 | Ya-Hsuan Lee v Hiroko Kuwata | 6-4,6-4 | |
| ITF Women Hong Kong | 01/05 02:00 | 28 | Yuuki Tanaka v Hiroko Kuwata | 4-6,1-6 |