Stadium: Court 12 Round: 62
| ITF Women Pelham Qual | 2018/04/09 15:00 | Ryngler, Alexa v Valero, Juliana | 6-2,6-1 |
| ITF Women Pelham Qual | 2018/04/08 15:00 | Ryngler, Alexa v Mamalat, Anna | 6-1,6-1 |
| Irapuato, Singles W-WITF-MEX-01A | 2018/03/12 23:20 | Arantxa Rus v Ryngler, Alexa | 6-3,6-7,6-4 |
| Irapuato, Singles Qualifying W-WITF-MEX-01A | 2018/03/11 18:55 | Ryngler, Alexa v Brodsky, Gail | 6-3,6-3 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/25 17:30 | Ryngler, Alexa v Lopez, Daniela Macarena | 6-7,2-6 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/24 15:30 | Gatica, Barbara v Ryngler, Alexa | 2-6,4-6 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/20 14:30 | Gonzalez, Montserrat v Ryngler, Alexa | 7-5,6-3 |
| ITF Women Curitiba Qual | 2018/02/19 16:05 | Kukharchuk, Nika v Ryngler, Alexa | 1-6,6-7 |
| ITF Women Pelham Qual | 2018/04/09 15:00 | Okuda, Akiko v Douglas, Ellie | 0-6,0-6 |
| ITF Women Pelham Qual | 2018/04/08 15:00 | Mulville, Allison v Douglas, Ellie | 2-6,0-6 |
| ITF Women Jackson Qual | 2018/04/02 16:30 | Catherine Harrison v Douglas, Ellie | 6-3,4-6,6-4 |
| ITF Women Jackson Qual | 2018/04/01 16:30 | Jerricka Boone v Douglas, Ellie | 0-6,0-6 |
| Irapuato, Singles W-WITF-MEX-01A | 2018/03/14 20:30 | Arantxa Rus v Douglas, Ellie | 7-6,6-3 |
| Irapuato, Singles W-WITF-MEX-01A | 2018/03/12 19:30 | Douglas, Ellie v Chieh-Yu Hsu | 1-6,6-2,6-3 |
| Irapuato, Singles Qualifying W-WITF-MEX-01A | 2018/03/11 20:30 | Riley, Alexandra v Douglas, Ellie | 3-6,4-6 |
| Irapuato, Singles Qualifying W-WITF-MEX-01A | 2018/03/10 20:30 | Duva, Andrea v Douglas, Ellie | 0-6,3-6 |