Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF W15 Yeongwol | 2022/09/07 02:10 | Gyeong Seo Lee v Sawayanagi, Riko | 3-6,6-7 |
| Osaka, Singles W-ITF-JPN-02A | 2023/04/10 01:00 | Gyeong Seo Lee v Ayano Shimizu | 5-7,6-4,10-8 |
| Osaka, Singles W-ITF-JPN-02A | 2023/04/09 01:00 | Yang, Ya-Yi v Gyeong Seo Lee | 6-2,6-7,6-10 |
| Kofu, Qualifications Simples W-ITF-JPN-05A | 2023/03/27 02:30 | Hozumi, Eri v Gyeong Seo Lee | 6-2,6-2 |
| ITF - W15 Hinode | 2023/03/23 07:10 | Gyeong Seo Lee v Natsumi Kawaguchi | 3-6,3-6 |
| ITF - W15 Hinode | 2023/03/21 03:00 | Gyeong Seo Lee v Britney Chiu | 6-2,4-6,6-4 |
| ITF - W15 Antalya | 2023/03/07 09:00 | Gyeong Seo Lee v Mavie Osterreicher | 4-6,2-6 |
| ITF - W15 Antalya | 2023/03/06 08:30 | Ersoz, Vanessa v Gyeong Seo Lee | 7-5,5-7,5-10 |
| ITF - W15 Antalya | 2023/03/05 06:30 | Gozde Turhan v Gyeong Seo Lee | 6-3,3-6,7-10 |
| Osaka, Singles W-ITF-JPN-02A | 2023/04/10 01:00 | Yamaguchi, Ai v Sawayanagi, Riko | 2-6,4-6 |
| Osaka, Singles W-ITF-JPN-02A | 2023/04/09 01:00 | Ayaka Ozeki v Sawayanagi, Riko | 0-6,0-6 |
| ITF W60 Canberra | 2023/03/21 03:00 | Sawayanagi, Riko v Dalila Jakupovic | 2-6,2-6 |
| ITF W60 Canberra | 2023/03/20 00:25 | Yang, Ya-Yi v Sawayanagi, Riko | 6-3,0-6,1-6 |
| ITF W60 Canberra Qual | 2023/03/18 23:00 | Fry, Sophia v Sawayanagi, Riko | 0-6,0-6 |
| ITF W60 Canberra | 2023/03/15 23:00 | Haruka Kaji v Sawayanagi, Riko | 6-2,4-6,6-2 |
| ITF W60 Canberra | 2023/03/13 23:00 | Sawayanagi, Riko v Irina Ramialison | 7-5,7-5 |
| ITF W60 Canberra | 2023/03/13 00:35 | Sawayanagi, Riko v Mana Kawamura | 3-6,7-5,6-4 |