Stadium: Court 3 Round: 19 Ground: Hardcourt outdoor
| 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 W15 Fukui | 2023/04/24 02:00 | Rinon Okuwaki v Miyu Nakashima | 6-2,6-0 |
| ITF W25 Osaka | 2023/04/18 01:00 | Rinon Okuwaki v Mio Mushika | 2-6,0-6 |
| ITF W25 Osaka | 2023/04/17 02:00 | Honoka Kobayashi v Rinon Okuwaki | 3-6,6-1,7-10 |
| ITF W25 Osaka | 2023/04/10 01:00 | Rinon Okuwaki v Georgina Garcia-Perez | 4-6,6-4,6-10 |
| ITF W25 Osaka | 2023/04/09 03:00 | Rinon Okuwaki v Kanako Osafune | 6-1,6-2 |
| ITF W25 Kashiwa | 2023/04/02 00:30 | Rinon Okuwaki v Georgina Garcia-Perez | 3-6,4-6 |
| ITF W25 Kofu | 2023/03/28 00:30 | Rinon Okuwaki v Yu-Yun Li | 6-7,3-6 |
| ITF W25 Kofu | 2023/03/27 02:30 | Nagomi Higashitani v Rinon Okuwaki | 7-5,2-6,3-10 |
| ITF W15 Fukui | 2023/04/24 02:00 | Kaho Oyama v Nagomi Higashitani | 0-6,1-6 |
| ITF W25 Osaka | 2023/04/17 03:30 | Nanari Katsumi v Nagomi Higashitani | 6-1,6-1 |
| ITF W25 Osaka | 2023/04/09 01:00 | Nagomi Higashitani v Mei Yamaguchi | 3-6,1-6 |
| ITF W25 Kofu | 2023/03/27 02:30 | Nagomi Higashitani v Rinon Okuwaki | 7-5,2-6,3-10 |
| ITF W15 Hinode | 2023/03/20 03:00 | Nagomi Higashitani v Karen Tsutsumi | 5-7,3-6 |
| ITF W15 Kuching | 2023/03/02 02:00 | Shuo Feng v Nagomi Higashitani | 6-2,6-1 |
| ITF W15 Kuching | 2023/03/01 10:05 | Nagomi Higashitani v Rinon Okuwaki | 6-4,0-6,6-3 |
| ITF W15 Kuching | 2023/02/28 01:00 | Nagomi Higashitani v Julia Peer | 6-3,2-6,10-7 |