| Fed Cup 2019 | 2019/04/20 16:10 | Tangia Riley-Codrington v Karen E Contreras | 3-6,1-6 |
| Billie Jean King Cup | 2019/04/18 16:40 | Noelia Zeballos v Karen E Contreras | 6-2,6-0 |
| Fed Cup 2019 | 2019/04/17 16:20 | Dana Guzman v Karen E Contreras | 6-0,6-0 |
| 2017 Fed Cup | 2017/07/21 19:45 | Iesha Shepherd v Karen E Contreras | 6-1,6-0 |
| 2017 Fed Cup | 2017/07/19 18:45 | Dominique Schaefer v Karen E Contreras | 6-1,6-0 |