Stadium: D Round: 45 Ground: Hardcourt outdoor
| WTA Hiroshima | 2018/09/08 02:00 | Risa Ozaki v Chihiro Muramatsu | 4-6,6-3,3-6 |
| ITF Women Vancouver | 2018/08/13 17:00 | Risa Ozaki v Martina Trevisan | 3-6,3-6 |
| ITF Women Vancouver | 2018/08/12 19:10 | Risa Ozaki v Emily Webley-Smith | 6-1,6-2 |
| ITF Women Landisville | 2018/08/08 15:35 | Anastasia Potapova v Risa Ozaki | 2-6,6-4,6-0 |
| ITF Women Landisville Qual | 2018/08/07 14:00 | Katerina Stewart v Risa Ozaki | 1-6,2-6 |
| 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 |
| WTA Hiroshima | 2018/09/10 03:00 | Anna Zaja v Silvia Soler-Espinosa | 3-6,4-6 |
| WTA Hiroshima | 2018/09/09 06:55 | Anna Zaja v Dejana Radanovic | 6-4,6-3 |
| US Open Women | 2018/08/22 16:20 | Lin Zhu v Anna Zaja | 6-4,7-5 |
| ITF Women Hechingen | 2018/08/11 11:00 | Ekaterine Gorgodze v Anna Zaja | 7-6,6-1 |
| ITF Women Hechingen | 2018/08/10 10:30 | Varvara Flink v Anna Zaja | 3-6,6-7 |
| ITF Women Hechingen | 2018/08/09 12:55 | Daniela Seguel v Anna Zaja | 4-6,2-6 |
| ITF Women Hechingen | 2018/08/08 10:10 | Michaela Honcova v Anna Zaja | 2-6,3-6 |
| ITF Women Prague | 2018/07/25 14:20 | Barbora Krejcikova v Anna Zaja | 6-2,6-0 |