Stadium: I Round: 45 Ground: Hardcourt outdoor
| ITF Women Landisville Qual | 2018/08/06 14:00 | Natela Dzalamidze v Risa Ozaki | 1-6,4-6 |
| ITF Women Landisville Qual | 2018/08/05 14:00 | Ashley Lahey v Risa Ozaki | 6-2,1-6,1-6 |
| ITF Women Nonthaburi | 2018/07/14 02:00 | Risa Ozaki v Ankita Raina | 2-6,3-6 |
| ITF Women Nonthaburi | 2018/07/13 02:00 | Peangtarn Plipuech v Risa Ozaki | 5-7,2-6 |
| ITF Women Nonthaburi | 2018/07/12 02:00 | Risa Ozaki v Hiroko Kuwata | 6-2,4-6,6-2 |
| ITF Women Nonthaburi | 2018/07/11 02:00 | Risa Ozaki v Kai-Chen Chang | 6-2,6-4 |
| ITF Women Nonthaburi | 2018/07/09 02:00 | Risa Ozaki v Sunam Jeong | 4-6,6-4,6-4 |
| ITF Women Hong Kong | 2018/06/19 02:00 | Jovana Jaksic v Risa Ozaki | 6-2,3-6,6-1 |
| ITF Women Nonthaburi | 2018/08/07 02:00 | Chihiro Muramatsu v Dabin Kim | 1-6,1-6 |
| ITF Women Contrexeville Qual | 2018/07/08 08:00 | Margot Yerolymos v Chihiro Muramatsu | 6-3,7-5 |
| ITF Women Denain | 2018/07/04 11:35 | Chihiro Muramatsu v Valeriya Strakhova | 1-6,4-6 |
| ITF Women Denain Qual | 2018/07/02 08:00 | Chihiro Muramatsu v Anna Danilina | 4-6,2-6 |
| ITF Women Denain Qual | 2018/07/01 14:30 | Chihiro Muramatsu v Maneva Rakotomalala | 6-2,6-3 |
| ITF Women Perigueux | 2018/06/26 09:15 | Moyuka Uchijima v Chihiro Muramatsu | 3-6,6-1,6-2 |
| ITF Women Karuizawa | 2018/05/22 01:00 | Chihiro Muramatsu v Shiho Akita | 6-2,6-4 |
| ITF Women Kurume | 2018/05/15 05:05 | Ivana Jorovic v Chihiro Muramatsu | 6-3,6-3 |