| ITF Women Sumter | 2018/06/15 13:00 | Marcela Zacarias v Ashley Lahey | 5-7,7-5,3-6 |
| ITF Women Sumter | 2018/06/14 13:00 | Marcela Zacarias v Olga Govortsova | 6-4,6-1 |
| ITF Women Sumter | 2018/06/13 15:30 | Marcela Zacarias v McCartney Kessler | 6-3,6-2 |
| ITF Women La Bisbal | 2018/05/17 09:00 | Kathinka Von Deichmann v Marcela Zacarias | 6-4,6-3 |
| ITF Women La Bisbal | 2018/05/15 07:30 | Yvonne Cavalle-Reimers v Marcela Zacarias | 1-6,6-3,3-6 |
| ITF Women La Bisbal Qual | 2018/05/13 15:50 | Yvonne Cavalle-Reimers v Marcela Zacarias | 6-2,6-7,6-4 |
| ITF Women La Bisbal Qual | 2018/05/12 12:00 | Carlota Iruela Descamps v Marcela Zacarias | 0-6,0-6 |
| ITF Women Monzon | 2018/05/09 09:30 | Eva Guerrero Alvarez v Marcela Zacarias | 2-6,6-3,7-5 |
| 2018 Fed Cup | 2018/06/20 14:28 | Laura L Q Martinez v Gabrielle Leslie | 6-2,4-6,6-6 |