Stadium: Court 1 Round: 26
| ITF Women Luzhou | 2018/05/30 02:30 | Siqi Cao v Mari Osaka | 6-4,7-5 |
| ITF Women Luzhou | 2018/05/28 02:00 | Meiling Wang v Mari Osaka | 4-6,4-6 |
| ITF Women Baotou | 2018/05/24 03:45 | Mari Osaka v Nika Kukharchuk | 5-7,0-6 |
| ITF Women Baotou | 2018/05/23 02:30 | Mari Osaka v Xinyu Jiang | 6-0,6-2 |
| ITF Women Wuhan | 2018/05/17 02:00 | Mari Osaka v Hanyu Guo | 4-6,6-3,5-7 |
| ITF Women Wuhan Qual | 2018/05/15 07:05 | Mari Osaka v Aleksandrina Naydenova | 6-3,6-1 |
| ITF Women Charlottesville | 2018/04/27 17:25 | Mari Osaka v Anhelina Kalinina | 2-6,7-6,5-7 |
| ITF Women Charlottesville | 2018/04/26 21:40 | Madison Brengle v Mari Osaka | 1-6,2-6 |
| ITF Women Brescia | 2018/06/10 14:00 | Kaia Kanepi v Martina Trevisan | 6-4,6-3 |
| ITF Women Brescia | 2018/06/09 12:00 | Martina Trevisan v Francesca Di Lorenzo | 6-4,6-2 |
| ITF Women Brescia | 2018/06/08 16:40 | Martina Trevisan v Laura Siegemund | 6-0,1-6,6-3 |
| ITF Women Brescia | 2018/06/07 11:35 | Martina Trevisan v Ludmilla Samsonova | 2-6,6-3,6-4 |
| ITF Women Brescia | 2018/06/06 09:30 | Martina Trevisan v Lucrezia Stefanini | 6-0,6-3 |
| French Open Women Qual | 2018/05/25 10:05 | Grace Min v Martina Trevisan | 1-6,6-4,6-3 |
| French Open Women Qual | 2018/05/24 08:00 | Marta Kostyuk v Martina Trevisan | 3-6,3-6 |
| French Open Women Qual | 2018/05/22 09:25 | Martina Trevisan v Francoise Abanda | 4-6,6-4,6-2 |