Round: 54 Ground: Synthetic outdoor
| ITF Women Wesley Chapel Qual | 2018/01/21 17:30 | Mary Closs v Emiliana Arango | 6-3,0-6,0-6 |
| ITF Women Orlando Qual | 2018/01/14 15:00 | Francesca Di Lorenzo v Mary Closs | 6-1,6-1 |
| ITF Women Daytona Beach Qual | 2018/01/07 16:30 | Mary Closs v Ange Oby Kajuru | 1-6,4-6 |
| ITF Women Guayaquil | 2017/12/04 19:30 | Mary Closs v Nika Kukharchuk | 4-6,1-6 |
| ITF Women Manta | 2017/11/28 16:20 | Mary Closs v Margaux Bovy | 7-5,4-6,3-6 |
| ITF Women Cucuta | 2017/11/09 20:35 | Mary Closs v Maria Camila Osorio | 0-6,3-6 |
| ITF Women Cucuta | 2017/11/08 16:00 | Emily Appleton v Mary Closs | 6-2,3-6,3-6 |
| ITF Women Cucuta | 2017/11/06 16:00 | Mariana Correa v Mary Closs | 4-6,2-6 |
| ITF Women Solarino | 2018/02/17 08:00 | Martina Forcisi v Alessia Truden | 1-6,2-6 |