| ITF - W60 Fukuoka | 05/08 02:55 | 25 | [405] Leonie Kung v Hiroko Kuwata [242] | 6-3,6-2 | |
| ITF - W80 Gifu | 04/30 01:00 | 25 | [245] Hiroko Kuwata v Xinyun Han [212] | 3-6,2-6 | |
| WTA - Anning | 04/22 04:40 | 25 | [208] Kai-Lin Zhang v Hiroko Kuwata [241] | 7-6,6-3 | |
| WTA - Anning | 04/20 02:30 | 45 | Hiroko Kuwata v Maddison Inglis | Cancelled | |
| ITF - W80 Dothan | 04/16 18:50 | 25 | [241] Hiroko Kuwata v Deniz Khazaniuk [254] | 3-6,4-6 | |
| WTA - Bogotá | 04/10 15:30 | 25 | [248] Hiroko Kuwata v Sachia Vickery [148] | 4-6,2-6 | |
| WTA - Bogotá | 04/07 17:25 | 64 | [252] Hiroko Kuwata v Chloe Paquet [224] | 6-3,1-6,5-7 | |
| WTA - Bogotá | 04/06 17:50 | 45 | [159] Martina Trevisan v Hiroko Kuwata [252] | 1-6,6-4,5-7 | |
| WTA - Monterrey | 03/31 20:55 | 46 | [252] Hiroko Kuwata v Miyu Kato [434] | 6-1,3-6,5-7 | |
| WTA - Monterrey | 03/30 17:40 | 45 | [116] Marie Bouzkova v Hiroko Kuwata [252] | 6-3,4-6,4-6 | |
| ITF - W25 Kofu | 03/18 00:30 | 45 | Hiroko Kuwata v Fatma Al Nabhani | 6-4,4-6,8-10 | |
| ITF - W60 Shenzhen | 03/16 03:00 | 28 | [172] Fangzhou Liu v Hiroko Kuwata [266] | 6-2,6-0 | |
| ITF - W60 Shenzhen | 03/15 07:00 | 27 | [266] Hiroko Kuwata v Sarah Rebecca Sekulic [403] | 3-6,6-4,6-0 | |
| ITF - W60 Shenzhen | 03/14 02:30 | 26 | [166] Ankita Raina v Hiroko Kuwata [266] | 6-7,2-6 | |
| ITF - W60 Shenzhen | 03/13 02:00 | 25 | [366] Chihiro Muramatsu v Hiroko Kuwata [266] | 6-2,2-6,5-7 | |
| ITF - W25 Mildura | 03/05 02:40 | 25 | [353] Katharina Gerlach v Hiroko Kuwata [266] | 6-3,3-6,6-3 | |
| ITF - W25 Osaka | 03/01 01:00 | 26 | [173] Fangzhou Liu v Hiroko Kuwata [267] | 6-2,6-1 | |
| ITF - W25 Osaka | 02/27 03:50 | 25 | [267] Hiroko Kuwata v Miyabi Inoue [350] | 6-4,6-4 | |
| ITF - W60 Quioto | 02/19 08:30 | 25 | [269] Hiroko Kuwata v Fangzhou Liu [176] | 3-6,1-6 | |
| ITF - W25 Jodhpur | 02/01 04:30 | 27 | [265] Hiroko Kuwata v Miharu Imanishi [404] | 7-6,6-7,4-6 | |
| ITF - W25 Jodhpur | 01/31 04:30 | 26 | [265] Hiroko Kuwata v Paige Hourigan [307] | 6-2,5-7,6-4 | |
| ITF - W25 Jodhpur | 01/29 05:55 | 25 | Hiroko Kuwata v Nefisa Berberovic | 1-6,6-3,7-6 | |
| ITF - W25 Hong Kong | 01/10 02:00 | 26 | [272] Hiroko Kuwata v Shuyue Ma [357] | 6-7,6-2,4-6 | |
| ITF - W25 Hong Kong | 01/08 04:45 | 25 | Hiroko Kuwata v Man Ying Maggie Ng | 6-1,6-2 | |
| ITF - W25 Hong Kong | 01/03 06:45 | 26 | [172] Valentini Grammatikopoulou v Hiroko Kuwata [269] | 6-4,0-6,7-6 | |
| ITF - W25 Hong Kong | 01/02 07:55 | 25 | Sofia Shapatava v Hiroko Kuwata | 3-6,2-6 | |
| ITF - Navi Mumbai - Feminino | 12/19 09:30 | 26 | [269] Hiroko Kuwata v Jacqueline Cako [500] | 6-2,3-6,2-6 | |
| ITF - Navi Mumbai - Feminino | 12/18 10:40 | 25 | Hiroko Kuwata v Jennifer Luikham | 6-3,7-5 | |
| Open da Austrália - Wild Card - Feminino | 11/29 02:00 | 26 | [353] Abigail Tere-Apisah v Hiroko Kuwata [270] | 4-6,6-4,7-5 | |
| ITF - Muzaffarnagar - Feminino | 11/16 06:00 | 28 | [275] Hiroko Kuwata v Natalija Kostic [360] | 1-6,2-6 |