Stadium: Stadium Round: 26 Ground: Hardcourt outdoor
| WTA Houston WD | 2018/11/13 17:00 | Guarachi/Routliffe v Manasse/Pegula | 4-6,2-6 |
| ITF Women Vancouver WD | 2018/08/15 02:30 | Guarachi/Routliffe v Branstine/Marino | 3-6,6-3,6-10 |
| WTA Washington WD | 2018/08/05 17:30 | Han/Jurak v Guarachi/Routliffe | 6-3,6-2 |
| WTA Washington WD | 2018/08/03 20:00 | Guarachi/Routliffe v Ahn/Davis | 7-5,3-6,10-8 |
| WTA Washington WD | 2018/07/31 23:50 | Dart/Thombare v Guarachi/Routliffe | 6-7,5-7 |
| Wimbledon Women WD | 2018/07/05 15:30 | Krejcikova/Siniakova v Guarachi/Routliffe | 6-2,2-6,6-2 |
| Wimbledon Women Qual WD | 2018/06/28 14:50 | Kalinskaya/Kuzmova v Guarachi/Routliffe | 4-6,4-6 |
| Wimbledon Women Qual WD | 2018/06/27 13:55 | Guarachi/Routliffe v Hon/Rus | 6-3,7-5 |