Stadium: Court 13 Round: 25 Ground: Clay
| ITF W15 Sharm El Sheikh | 2021/04/07 16:15 | Sarah Beth Grey v Riko Sawayanagi | 6-4,6-0 |
| ITF W15 Sharm El Sheikh | 2021/04/06 08:50 | Riko Sawayanagi v Alana Tuayeva | 6-2,6-3 |
| ITF W15 Sharm El Sheikh | 2021/04/05 07:30 | Sophia Biolay v Riko Sawayanagi | 4-6,3-6 |
| ITF W15 Sharm El Sheikh | 2021/03/29 09:00 | Riko Sawayanagi v Jade Bornay | 7-5,3-6,5-10 |
| ITF W15 Sharm El Sheikh | 2021/03/28 12:00 | Katyarina Paulenka v Riko Sawayanagi | 3-6,4-6 |
| ITF W25 Hamamatsu | 2019/10/16 01:00 | Paula Badosa v Riko Sawayanagi | 6-4,6-1 |
| ITF Women Hamamatsu | 2018/10/20 03:15 | Riko Sawayanagi v Mana Ayukawa | 1-6,3-6 |
| ITF Women Hamamatsu | 2018/10/19 03:40 | Susan Bandecchi v Riko Sawayanagi | 5-7,4-6 |