Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Fukui | 2023/04/25 01:00 | Rinon Okuwaki v Higashitani, Nagomi | 7-6,6-1 |
| Kofu, Singles Qualifying W-ITF-JPN-05A | 2023/03/27 02:30 | Higashitani, Nagomi v Rinon Okuwaki | 7-5,2-6,3-10 |
| ITF W15 Kuching | 2023/03/01 10:05 | Higashitani, Nagomi v Rinon Okuwaki | 6-4,0-6,6-3 |
| ITF W15 Monastir | 2024/01/02 09:40 | Higashitani, Nagomi v 코비, 프란세스카 | 6-4,0-6,10-7 |
| ITF W15 Monastir | 2023/12/28 11:25 | Higashitani, Nagomi v 베키리, 치라즈 | 4-6,5-7 |
| ITF W15 Monastir | 2023/12/27 16:45 | Higashitani, Nagomi v 코비, 프란세스카 | 6-0,6-1 |
| ITF W15 Monastir | 2023/12/26 10:45 | Higashitani, Nagomi v 파이에트, 파울린 | 6-4,2-6,10-2 |
| ITF W25 Nairobi | 2023/12/19 05:55 | Higashitani, Nagomi v 렌, 에마 | 1-6,2-6 |
| ITF W25 Nairobi | 2023/12/12 07:25 | Higashitani, Nagomi v Cherubini, Diletta | 3-6,4-6 |
| ITF W25 Nairobi | 2023/12/10 09:00 | Higashitani, Nagomi v Sonia Tuyishime | 6-0,6-0 |
| UTR Pro Kawaguchi Women | 2023/11/19 02:30 | Hinata Chiba v Higashitani, Nagomi | 6-0,4-6,6-3 |
| ITF W15 Monastir | 2023/12/27 18:10 | Rinon Okuwaki v 수비르드존코바, 달자 | 6-7,1-6 |
| ITF W40 Yokohama | 2023/11/27 02:45 | Yufei Ren v Rinon Okuwaki | 6-3,5-7,6-4 |
| ITF W100 Takasaki | 2023/11/20 04:45 | 리앙, 언 수어 v Rinon Okuwaki | 5-7,6-1,6-1 |
| ITF W100 Takasaki | 2023/11/13 04:30 | Rinon Okuwaki v 카와구치, 나트수미 | 4-6,2-6 |
| ITF W40 Nanao | 2023/09/26 04:25 | Rinon Okuwaki v Chia Yi Tsao | 0-6,0-6 |
| Kyoto, Singles Qualifying W-ITF-JPN-15A | 2023/09/18 00:00 | Rinko Matsuda v Rinon Okuwaki | 6-1,6-3 |
| Kyoto, Singles Qualifying W-ITF-JPN-15A | 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 정, 수남 | 2-6,1-6 |