Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF Women Saguenay | 2018/10/21 16:45 | Pamela Montez v Lorraine M. Guillermo | 6-1,6-3 |
| ITF Women Victoria | 2018/06/22 18:55 | Pamela Montez v Lorraine M. Guillermo | 6-4,6-1 |
| ITF Women Hua Hin Qual | 2018/06/03 03:00 | Lorraine M. Guillermo v Pamela Montez | 4-6,2-6 |
| ITF W60 Templeton | 2019/09/23 20:00 | Pamela Montez v Zoe Gwen Scandalis | 6-3,7-6 |
| ITF W25 Redding | 2019/09/13 18:00 | Jada Myii Hart v Pamela Montez | 6-4,7-5 |
| ITF W25 Redding | 2019/09/12 17:00 | Pamela Montez v Ashley Kratzer | 5-7,7-5,6-4 |
| ITF W25 Redding | 2019/09/11 17:00 | Pamela Montez v Ingrid Gamarra Martins | 7-5,6-3 |
| ITF W100 Vancouver | 2019/08/12 22:20 | Hanna Chang v Pamela Montez | 6-4,6-2 |
| ITF W100 Vancouver | 2019/08/12 17:00 | Pamela Montez v Abbie Myers | 7-5,2-6,10-4 |
| ITF W25 Fort Worth | 2019/08/01 16:00 | Lauren Proctor v Pamela Montez | 6-3,6-4 |
| ITF W25 Fort Worth | 2019/08/01 00:10 | Victoria Emma v Pamela Montez | 2-6,2-6 |
| ITF W60 Templeton | 2019/09/23 21:15 | Sarah Lee v Lorraine M. Guillermo | 3-6,3-6 |
| ITF W25 Redding | 2019/09/10 21:25 | Lorraine M. Guillermo v Gabriela Talaba | 3-6,6-4,4-6 |
| ITF W25 Fort Worth | 2019/08/03 17:15 | Lorraine M. Guillermo v Chanelle Van Nguyen | 6-4,5-7,3-6 |
| ITF W25 Fort Worth | 2019/08/02 14:00 | Lorraine M. Guillermo v Sophia Whittle | 6-0,7-6 |
| ITF W25 Fort Worth | 2019/08/01 14:00 | Lorraine M. Guillermo v Amy Zhu | 6-4,6-3 |
| ITF W25 Fort Worth | 2019/07/31 16:55 | Gabriela Talaba v Lorraine M. Guillermo | 3-6,6-1,4-6 |
| ITF W60 Ashland | 2019/07/24 16:25 | Lorraine M. Guillermo v Maegan Manasse | 3-6,1-6 |
| ITF W60 Ashland | 2019/07/23 14:50 | Alycia Parks v Lorraine M. Guillermo | 4-6,2-6 |