Stadium: Court 4 Round: 44 Ground: Hardcourt outdoor
| ITF W25 Chiang Rai Qual | 2022/06/06 04:45 | Eri Shimizu v Supapitch Kuearum | 7-5,6-4 |
| ITF W25 Chiang Rai Qual | 2022/06/05 05:35 | Eri Shimizu v Pimmada Lim | 6-1,6-0 |
| ITF W25 Chiang Rai | 2022/05/31 04:25 | Eri Shimizu v Tamachan Momkoonthod | 4-6,1-6 |
| ITF W25 Chiang Rai | 2022/05/30 05:40 | Eri Shimizu v Pimmada Lim | 6-1,6-0 |
| ITF W15 Sharm El Sheikh | 2021/10/30 08:00 | Eudice Chong v Eri Shimizu | 6-3,6-3 |
| ITF W15 Sharm El Sheikh | 2021/10/29 08:00 | Eri Shimizu v Hong Yi Cody Wong | 7-6,7-6 |
| ITF W15 Sharm El Sheikh | 2021/10/28 11:30 | Eri Shimizu v Demi Tran | 6-0,6-4 |
| ITF W15 Sharm El Sheikh | 2021/10/27 08:00 | Eri Shimizu v Anna Ulyashchenko | 7-6,7-6 |
| ITF W25 Chiang Rai Qual | 2022/06/06 05:35 | Varunya Wongteanchai v Riko Sawayanagi | 6-2,6-7,6-10 |
| ITF W25 Chiang Rai Qual | 2022/06/05 06:50 | Waraporn Muangpho v Riko Sawayanagi | 0-6,0-6 |
| ITF W25 Chiang Rai | 2022/06/02 02:00 | Haruna Arakawa v Riko Sawayanagi | 6-4,6-0 |
| ITF W25 Chiang Rai | 2022/06/01 04:05 | Riko Sawayanagi v Anastasia Sukhotina | 1-6,6-1,7-5 |
| ITF W25 Chiang Rai | 2022/05/31 05:45 | Riko Sawayanagi v Nidhi Chilumula | 6-4,6-0 |
| ITF W25 Chiang Rai | 2022/05/30 05:10 | Riko Sawayanagi v Rada Manataweewat | 6-1,6-4 |
| ITF W15 Antalya | 2022/04/20 07:00 | Eva Garkusha v Riko Sawayanagi | 6-2,4-6,6-2 |
| ITF W15 Antalya | 2022/04/12 11:00 | Riko Sawayanagi v Natalia Szabanin | 1-6,1-6 |