Stadium: Center Court Round: 19 Ground: Hardcourt outdoor
| WTA Tokyo | 2022/09/17 08:25 | Katarzyna Kawa v Chihiro Muramatsu | 6-2,5-7,4-6 |
| ITF W60 Montreux | 2022/09/08 13:50 | Sebastianna Scilipoti v Chihiro Muramatsu | 7-6,6-3 |
| ITF W60 Montreux | 2022/09/07 14:30 | Chihiro Muramatsu v Arlinda Rushiti | 6-4,6-7,6-0 |
| ITF W25 Trieste | 2022/08/30 09:25 | Oana Georgeta Simion v Chihiro Muramatsu | 6-2,6-1 |
| ITF W25 Braunschweig | 2022/08/25 09:00 | Julia Middendorf v Chihiro Muramatsu | 6-3,6-2 |
| ITF W25 Braunschweig | 2022/08/24 14:00 | Fabienne Gettwart v Chihiro Muramatsu | 2-6,4-6 |
| ITF W25 Vrnjacka Banja | 2022/08/17 07:30 | Aneta Kucmova v Chihiro Muramatsu | 6-0,6-2 |
| ITF W60 Nur-Sultan | 2022/07/20 06:35 | Chihiro Muramatsu v Viktoria Morvayova | 4-6,1-6 |
| WTA Tokyo | 2022/09/17 08:35 | Rina Saigo v Sophie Chang | 6-4,6-0 |
| ITF W60 Prague | 2022/08/28 12:20 | Denise Hrdinkova v Rina Saigo | 6-3,6-3 |
| ITF W60 Prerov | 2022/08/24 08:00 | Rina Saigo v Barbora Palicova | 6-3,3-6,4-6 |
| ITF W60 Prerov | 2022/08/23 08:00 | Rina Saigo v Anna Turati | 4-6,7-6,10-8 |
| ITF W60 Prerov | 2022/08/22 08:00 | Angelica Moratelli v Rina Saigo | 3-6,2-6 |
| ITF W25 Mogyoród | 2022/08/18 11:20 | Rina Saigo v Brenda Fruhvirtova | 2-6,1-6 |
| ITF W25 Mogyoród | 2022/08/16 09:30 | Rina Saigo v Nika Radisic | 6-1,6-1 |
| ITF W25 Mogyoród | 2022/08/15 08:00 | Rina Saigo v Rebeka Antal | 6-1,6-1 |