Stadium: COURT A Round: 28 Ground: Synthetic outdoor
| ITF W25 Makinohara | 2023/10/06 00:30 | Rina Saigo v Hiromi Abe | 3-6,6-3,6-4 |
| ITF W25 Makinohara | 2023/10/05 00:30 | Rina Saigo v Funa Kozaki | 6-3,6-1 |
| ITF W25 Makinohara | 2023/10/04 02:00 | Rina Saigo v Ari Matsumoto | 6-4,6-4 |
| WTA Tokyo | 2023/09/25 05:00 | Cristina Bucsa v Rina Saigo | 6-1,6-2 |
| WTA Tokyo | 2023/09/24 01:00 | Sakura Hosogi v Rina Saigo | 1-6,3-6 |
| WTA Tokyo | 2023/09/23 03:00 | Giuliana Olmos v Rina Saigo | 6-7,3-6 |
| ITF W40 Skopje | 2023/09/14 09:45 | Lina Gjorcheska v Rina Saigo | 6-7,6-2,6-2 |
| ITF W40 Skopje | 2023/09/12 10:30 | Ilay Yoruk v Rina Saigo | 6-4,4-6,6-7 |
| ITF W25 Makinohara | 2023/10/06 02:40 | Sara Saito v Joanna Garland | 7-6,0-6,6-2 |
| ITF W25 Makinohara | 2023/10/05 03:05 | Sara Saito v Eunhye Lee | 6-3,6-1 |
| WTA Tokyo | 2023/09/24 05:20 | Mai Hontama v Sara Saito | 6-2,6-2 |
| WTA Tokyo | 2023/09/23 08:40 | Nicole Melichar v Sara Saito | 3-6,2-6 |
| ITF W25 Kyoto | 2023/09/22 00:50 | Fernanda Contreras Gomez v Sara Saito | 6-3,6-3 |
| ITF W25 Kyoto | 2023/09/21 05:05 | Rinko Matsuda v Sara Saito | 3-6,1-6 |
| ITF W25 Kyoto | 2023/09/19 01:00 | Hiromi Abe v Sara Saito | 3-6,1-6 |
| ITF W40 Hong Kong | 2023/08/25 02:00 | Ya-Yi Yang v Sara Saito | 6-1,6-3 |