| ITF Women Hong Kong | 12/29 02:00 | 28 | Hiroko Kuwata v Helene Scholsen | 6-2,6-3 | |
| ITF Women Hong Kong | 12/28 02:00 | 27 | Hiroko Kuwata v Pei-Chi Lee | 6-4,7-5 | |
| ITF Women Hong Kong | 12/27 04:05 | 26 | Hiroko Kuwata v Risa Ushijima | 6-0,6-3 | |
| ITF Women Hong Kong | 12/25 02:00 | 25 | Hiroko Kuwata v Yexin Ma | 6-0,7-6 | |
| ITF Women Navi Mumbai | 12/18 12:30 | 25 | [281] Hiroko Kuwata v Diana Marcinkevica [294] | 3-6,0-6 | |
| Australian Open Women WC | 11/30 02:00 | 26 | [282] Hiroko Kuwata v Xuliu Sun [405] | 7-5,3-6,2-6 | |
| WTA Mumbai | 11/20 11:20 | 25 | [279] Hiroko Kuwata v Fanny Stollar [240] | 4-6,3-6 | |
| WTA Mumbai Qual | 11/19 06:00 | 46 | Hiroko Kuwata v Anna Morgina | 7-5,6-4 | |
| WTA Mumbai Qual | 11/18 08:25 | 45 | Hiroko Kuwata v Naoko Eto | 6-0,6-0 | |
| WTA Taipei Qual | 11/12 06:30 | 45 | [185] Jacqueline Cako v Hiroko Kuwata [282] | 3-6,6-2,6-3 | |
| WTA Hua Hin Qual | 11/04 04:50 | 45 | [376] Giuliana Olmos v Hiroko Kuwata [272] | 6-3,6-2 | |
| ITF Women Liuzhou | 10/27 03:00 | 27 | Nao Hibino v Hiroko Kuwata | 6-2,6-2 | |
| ITF Women Liuzhou | 10/26 04:30 | 26 | Hiroko Kuwata v Eri Hozumi | 6-4,6-1 | |
| ITF Women Liuzhou | 10/25 02:00 | 25 | [353] Ingrid Neel v Hiroko Kuwata [283] | 4-6,4-6 | |
| ITF Women Suzhou | 10/18 06:40 | 25 | Kaja Juvan v Hiroko Kuwata | 6-2,6-1 | |
| WTA Tianjin Qual | 10/08 04:30 | 46 | [123] Arina Rodionova v Hiroko Kuwata [275] | 6-1,6-4 | |
| WTA Tianjin Qual | 10/07 09:15 | 45 | [373] Alla Kudryavtseva v Hiroko Kuwata [275] | 3-6,3-6 | |
| WTA Guangzhou Qual | 09/16 06:25 | 45 | [381] Kyoka Okamura v Hiroko Kuwata [259] | 6-4,7-6 | |
| WTA Tokyo Qual | 09/09 02:00 | 45 | [261] Hiroko Kuwata v Karolina Muchova [271] | 4-6,2-6 | |
| WTA Dalian | 09/06 04:00 | 25 | [162] Fangzhou Liu v Hiroko Kuwata [261] | 6-1,6-0 | |
| WTA Dalian Qual | 09/04 05:50 | 46 | Hiroko Kuwata v Yuxuan Zhang | 3-6,1-6 | |
| WTA Dalian Qual | 09/03 06:10 | 45 | [261] Hiroko Kuwata v Kotomi Takahata [120] | 6-2,6-0 | |
| ITF Women Tsukuba | 08/22 03:25 | 25 | [476] Ling Zhang v Hiroko Kuwata [255] | 6-3,6-2 | |
| ITF Women Landisville | 08/12 17:30 | 28 | [269] Hiroko Kuwata v Anna Karolina Schmiedlova [196] | 2-6,1-6 | |
| ITF Women Landisville | 08/11 18:55 | 27 | [269] Hiroko Kuwata v Mari Osaka [334] | 6-1,6-1 | |
| ITF Women Landisville | 08/10 21:30 | 26 | [296] An-Sophie Mestach v Hiroko Kuwata [269] | 0-6,3-6 | |
| ITF Women Landisville | 08/09 16:20 | 25 | [374] Julia Elbaba v Hiroko Kuwata [269] | 6-7,3-6 | |
| ITF Women Lexington | 08/03 14:00 | 26 | [188] Amanda Anisimova v Hiroko Kuwata [282] | 6-0,6-1 | |
| ITF Women Lexington | 08/01 16:50 | 25 | [357] Priscilla Hon v Hiroko Kuwata [282] | 3-6,1-6 | |
| ITF Women Granby | 07/26 18:45 | 25 | [263] Hiroko Kuwata v Alexa Guarachi [491] | 4-6,7-6,4-6 |