Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| ITF Women Dothan | 2018/04/17 18:45 | Olga Ianchuk v Risa Ozaki | 6-7,6-0,6-7 |
| ITF Women Indian Harbour | 2018/04/11 19:10 | Risa Ozaki v Taylor Townsend | 2-6,1-6 |
| WTA Monterrey | 2018/04/03 02:00 | Risa Ozaki v Magdalena Rybarikova | 4-6,3-6 |
| ITF Women Canberra | 2018/03/21 02:00 | Jaimee Fourlis v Risa Ozaki | 6-2,6-1 |
| ITF Women Shenzhen | 2018/03/13 02:00 | Viktoria Hruncakova v Risa Ozaki | 6-4,6-2 |
| WTA Indian Wells Qual | 2018/03/05 20:35 | Su-Wei Hsieh v Risa Ozaki | 6-4,6-3 |
| WTA Indian Wells Qual | 2018/02/24 20:00 | Risa Ozaki v Francesca Di Lorenzo | 4-6,2-6 |
| WTA Doha Qual | 2018/02/10 12:35 | Monica Niculescu v Risa Ozaki | 6-1,6-0 |
| ITF Women Cairo | 2017/11/28 07:30 | Haine Ogata v Watsachol Sawasdee | 6-1,6-2 |
| ITF Women Sharm El Sheikh | 2017/11/22 16:40 | Shalimar Talbi v Watsachol Sawasdee | 6-3,7-6 |
| ITF Women Sharm El Sheikh | 2017/11/20 14:00 | Watsachol Sawasdee v Katerina Tsygourova | 1-6,1-6 |
| ITF Women Sharm El Sheikh | 2017/11/13 14:00 | Karolina Kubanova v Watsachol Sawasdee | 1-6,6-1,7-5 |
| ITF Women Sharm El Sheikh | 2017/11/12 15:30 | Candace O Pedro v Watsachol Sawasdee | 2-6,0-6 |
| ITF Women Sharm El Sheikh | 2017/11/06 14:00 | Watsachol Sawasdee v Karolayne A-Da Rosa | 3-6,6-2,5-7 |
| ITF Women Sharm El Sheikh | 2017/11/05 17:00 | Watsachol Sawasdee v Brittany Collens | 6-7,6-1,6-4 |
| ITF Women Nonthaburi Qual | 2017/10/08 02:00 | Watsachol Sawasdee v Corina Mader | 2-6,6-2,4-6 |