Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Fukui | 2023/04/25 01:00 | Rinon Okuwaki v Nagomi Higashitani | 7-6,6-1 |
| ITF W25 Kofu | 2023/03/27 02:30 | Nagomi Higashitani v Rinon Okuwaki | 7-5,2-6,3-10 |
| ITF W15 Kuching | 2023/03/01 10:05 | Nagomi Higashitani v Rinon Okuwaki | 6-4,0-6,6-3 |
| ITF W25 Hamamatsu | 2023/10/09 06:00 | Nagomi Higashitani v Michiru Furuya | 6-0,6-4 |
| ITF W25 Makinohara | 2023/10/03 00:30 | Eunhye Lee v Nagomi Higashitani | 6-1,6-1 |
| ITF W25 Makinohara | 2023/10/02 00:30 | Yuka Matsumoto v Nagomi Higashitani | 6-4,2-6,5-10 |
| ITF W40 Nanao | 2023/09/25 02:00 | Suzuho Oshino v Nagomi Higashitani | 6-3,6-3 |
| ITF W40 Nanao | 2023/09/24 01:00 | Tomoko Kato v Nagomi Higashitani | 2-6,5-7 |
| ITF W25 Kyoto | 2023/09/17 01:00 | Lisa-Marie Rioux v Nagomi Higashitani | 6-4,6-2 |
| UTR Pro Takasaki Women | 2023/09/09 08:27 | Nagomi Higashitani v Aya Ishii | 6-4,6-3 |
| UTR Pro Takasaki Women | 2023/09/09 01:15 | Nagomi Higashitani v Arisa Kobayashi | 6-3,6-1 |
| ITF W40 Nanao | 2023/09/26 04:25 | Rinon Okuwaki v Chia Yi Tsao | 0-6,0-6 |
| ITF W25 Kyoto | 2023/09/18 00:00 | Rinko Matsuda v Rinon Okuwaki | 6-1,6-3 |
| ITF W25 Kyoto | 2023/09/17 01:00 | Moeka Miyata v Rinon Okuwaki | 6-4,1-6,9-11 |
| ITF W15 Yeongwol | 2023/09/05 05:25 | Rinon Okuwaki v Sunam Jeong | 2-6,1-6 |
| ITF W15 Sapporo | 2023/08/09 02:30 | Rinon Okuwaki v BoYoung Jeong | 4-6,2-6 |
| ITF W15 Sapporo | 2023/08/06 05:00 | Rinon Okuwaki v Thasaporn Naklo | 2-6,3-6 |
| ITF W15 Sapporo | 2023/08/05 01:00 | Rinon Okuwaki v Kayo Nishimura | 3-6,6-1,6-1 |
| ITF W15 Sapporo | 2023/08/04 00:55 | Funa Kozaki v Rinon Okuwaki | 4-6,5-7 |