Stadium: S Round: 26
| ITF Women Charleston | 2018/05/02 14:00 | Ana Sofia Sanchez v Katerina Stewart | 3-6,2-6 |
| ITF Women Charleston Qual | 2018/05/01 14:00 | Katerina Stewart v Anastasia E Nefedova | 6-2,6-0 |
| ITF Women Charleston Qual | 2018/04/30 16:40 | Katerina Stewart v Maria Lourdes Carle | 6-2,6-1 |
| ITF Women Charleston Qual | 2018/04/29 18:30 | Katerina Stewart v Ingrid Neel | 6-4,6-3 |
| ITF Women Charlottesville | 2018/04/27 16:00 | Katerina Stewart v Jennifer Brady | 3-6,5-7 |
| ITF Women Charlottesville | 2018/04/26 19:25 | Katerina Stewart v Francesca Di Lorenzo | 4-6,6-3,6-3 |
| ITF Women Charlottesville | 2018/04/26 13:30 | Irina Maria Bara v Katerina Stewart | 4-6,0-6 |
| ITF Women Dothan | 2018/04/17 16:50 | Katerina Stewart v Louisa Chirico | 7-5,4-6,5-7 |
| ITF Women Charleston | 2018/05/02 15:05 | Paula Cristina Goncalves v Nicole Gibbs | 3-6,6-7 |
| WTA Bogota | 2018/04/09 15:00 | Daniela Seguel v Nicole Gibbs | 6-2,6-2 |
| 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 |