Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF Women Fukuoka | 2017/05/10 03:55 | Yukina Saigo v Riko Sawayanagi | 0-6,6-4,2-6 |
| ITF W25 Horb | 2022/07/25 09:30 | Yukina Saigo v Fiona Ganz | 2-6,2-6 |
| ITF W25 Darmstadt | 2022/07/18 09:00 | Yukina Saigo v Rina Saigo | 1-6,1-6 |
| ITF W25 Aschaffenburg | 2022/07/11 09:00 | Ivana Sebestova v Yukina Saigo | 6-0,7-6 |
| ITF W25 Netanya | 2022/05/25 07:00 | Nicole Khirin v Yukina Saigo | 6-3,6-1 |
| ITF W25 Netanya | 2022/05/23 06:30 | Yukina Saigo v Karin Altori | 6-3,2-6,5-10 |
| ITF W25 Akko | 2022/05/17 08:05 | Pei-Chi Lee v Yukina Saigo | 6-3,3-6,6-4 |
| ITF W60 Saint-Gaudens | 2022/05/09 15:15 | Yukina Saigo v Julia Stamatova | 3-6,3-6 |
| ITF W15 Antalya | 2022/05/04 08:35 | Yukina Saigo v Diana Demidova | 6-2,3-6,3-6 |
| ITF W15 Chiang Rai | 2022/06/16 04:40 | Riko Sawayanagi v Fang Ying Xun | 3-6,3-6 |
| ITF W15 Chiang Rai | 2022/06/14 05:10 | Riko Sawayanagi v Nana Kawagishi | 6-3,6-3 |
| ITF W25 Chiang Rai | 2022/06/07 03:40 | Eri Shimizu v Riko Sawayanagi | 3-6,7-5,11-9 |
| 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 |