Stadium: Campo 2 Round: 25 Ground: Clay
| WTA Bogota Qual | 2018/04/08 15:30 | Maryna Zanevska v Daniela Seguel | 3-6,3-6 |
| WTA Bogota Qual | 2018/04/07 16:10 | Jessica Plazas v Daniela Seguel | 3-6,3-6 |
| WTA Charleston Qual | 2018/03/31 14:00 | Alla Kudryavtseva v Daniela Seguel | 7-5,4-6,6-2 |
| WTA Acapulco Qual | 2018/02/24 23:30 | Daniela Seguel v Jasmine Paolini | 6-3,3-6,1-6 |
| 2018 Fed Cup | 2018/02/08 19:30 | Veronica Cepede Royg v Daniela Seguel | 6-7,4-6 |
| ITF Women Midland Qual | 2018/01/29 17:15 | Daniela Seguel v Julia Elbaba | 3-6,4-6 |
| ITF Women Midland Qual | 2018/01/28 15:00 | Daniela Seguel v Victoria Rodriguez | 7-6,6-2 |
| WTA Newport Beach | 2018/01/23 21:30 | Daniela Seguel v Carol Zhao | 3-6,6-2,5-7 |
| WTA Monterrey | 2018/04/03 21:20 | Monica Puig v Nicole Gibbs | 6-3,6-3 |
| WTA Miami Qual | 2018/03/20 14:00 | Natalia Vikhlyantseva v Nicole Gibbs | 7-6,6-4 |
| WTA Miami Qual | 2018/03/19 15:20 | Sofya Zhuk v Nicole Gibbs | 2-6,0-6 |
| WTA Indian Wells Qual | 2018/03/05 23:00 | Nicole Gibbs v Andrea Petkovic | 6-1,2-6,0-6 |
| WTA Indian Wells | 2018/02/28 22:45 | Amanda Anisimova v Nicole Gibbs | 6-4,6-0 |
| WTA Indian Wells | 2018/02/26 19:00 | Nicole Gibbs v Natalia Vikhlyantseva | 7-5,6-2 |
| WTA Newport Beach | 2018/01/26 21:05 | Nicole Gibbs v Ajla Tomljanovic | 6-4,5-7,2-6 |
| WTA Newport Beach | 2018/01/25 21:20 | Anna Karolina Schmiedlova v Nicole Gibbs | 6-7,4-6 |