| ITF Women Goyang | 2017/05/28 03:00 | Mari Osaka v Peangtarn Plipuech | 6-7,0-6 |
| ITF Women Goyang | 2017/05/27 03:40 | Mari Osaka v Haruka Kaji | 6-1,3-6,6-2 |
| ITF Women Goyang | 2017/05/26 01:00 | Mari Osaka v Masa Jovanovic | 6-3,6-3 |
| ITF Women Goyang | 2017/05/25 01:00 | Mari Osaka v Samantha Murray | 2-6,6-1,6-0 |
| ITF Women Goyang | 2017/05/24 03:45 | Deniz Khazaniuk v Mari Osaka | 1-6,4-6 |
| ITF Women Incheon | 2017/05/17 03:30 | Mari Osaka v Danielle Lao | 4-6,0-6 |
| ITF Women Changwon | 2017/05/11 01:00 | Seung-Yeon Hong v Mari Osaka | 7-5,6-2 |
| ITF Women Irapuato | 2017/04/15 00:40 | Mari Osaka v Michaela Honcova | 4-6,6-7 |