Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF W25 - Kashiwa | 2019/04/02 05:10 | Risa Ozaki v Daria Snigur | 6-0,3-6,4-6 |
| ITF W25 - Canberra | 2019/03/27 00:00 | Risa Ozaki v Alison Bai | 2-6,4-6 |
| ITF W25 - Canberra | 2019/03/24 00:00 | Risa Ozaki v Destanee Aiava | 2-6,2-6 |
| ITF W25 - Canberra | 2019/03/23 01:40 | Risa Ozaki v Eri Hozumi | 6-2,7-5 |
| ITF W25 - Canberra | 2019/03/22 00:50 | Risa Ozaki v Maddison Inglis | 6-7,7-6,7-5 |
| ITF W25 - Canberra | 2019/03/20 23:00 | Irina Maria Bara v Risa Ozaki | 6-7,2-6 |
| ITF W25 - Canberra | 2019/03/19 00:45 | Risa Ozaki v Gabriella Da Silva Fick | 6-0,6-3 |
| ITF W25 Nishi-Tama | 2019/03/13 03:15 | Risa Ozaki v Giulia Gatto Monticone | 2-6,2-6 |
| ITF W25 - Osaka | 2019/04/08 01:00 | Miyu Nakashima v Mei Yamaguchi | 6-2,3-6,8-10 |
| ITF W15 Nanchang | 2019/02/27 03:45 | Shou Na Mu v Mei Yamaguchi | 6-4,6-1 |
| ITF W15 Nanchang | 2019/02/24 03:00 | Mei Yamaguchi v Jiaxi Lu | 6-7,2-6 |
| ITF W15 Nanchang | 2019/02/23 03:00 | Siqi Cao v Mei Yamaguchi | 3-6,6-3,4-6 |
| ITF W15 Nanchang | 2019/02/22 05:00 | Chengyiyi Yuan v Mei Yamaguchi | 7-5,1-6,3-6 |
| ITF W15 Nanchang | 2019/02/21 02:00 | Ziyue Sun v Mei Yamaguchi | 6-3,0-6,5-7 |
| ITF W15 Nanchang | 2019/02/20 03:15 | Ashley Chang v Mei Yamaguchi | 0-6,1-6 |
| ITF Women Hamamatsu | 2018/10/19 01:00 | Ayano Shimizu v Mei Yamaguchi | 7-5,4-6,7-6 |