Stadium: Court 1
| ITF W25 Las Vegas | 2020/03/02 18:00 | Charlotte Chavatipon v Lorraine M. Guillermo | 0-6,6-3,10-4 |
| ITF W25 Rancho Santa Fe | 2020/02/24 21:10 | Lorraine M. Guillermo v Olga Danilovic | 4-6,6-2,1-6 |
| ITF W25 Malibu | 2020/01/14 21:00 | Lorraine M. Guillermo v Solymar Colling | 2-6,3-6 |
| ITF W25 Malibu | 2020/01/13 18:30 | Lorraine M. Guillermo v Alyssa Tobita | 6-0,6-2 |
| ITF W15 Norman | 2019/12/04 20:55 | Jessica Failla v Lorraine M. Guillermo | 6-4,6-1 |
| ITF W25 Tucson | 2019/11/22 18:00 | Madeleine Kobelt v Lorraine M. Guillermo | 7-5,1-6,6-3 |
| ITF W25 Tucson | 2019/11/19 16:30 | Lorraine M. Guillermo v Gabriella Price | 6-2,6-3 |
| ITF W25 Tucson | 2019/11/18 16:30 | Lorraine M. Guillermo v Jessica Failla | 6-2,7-6 |
| US Pro Tennis Series Women | 2020/05/24 19:15 | Anastasia E Nefedova v Mary Closs | 6-2,6-1 |
| US Pro Tennis Series Women | 2020/05/24 13:30 | Sofia Sewing v Mary Closs | 6-4,6-4 |
| ITF W15 Cancun | 2020/03/11 21:25 | Mary Closs v Justina Mikulskyte | 7-5,6-7,1-6 |
| ITF W25 Las Vegas | 2020/03/02 18:00 | Sophia Whittle v Mary Closs | 6-0,6-2 |
| ITF W15 Cancun | 2020/02/13 19:35 | Mary Closs v Maria Lourdes Carle | 5-7,3-6 |
| ITF W15 Cancun | 2020/02/12 18:55 | Mary Closs v Gabriella Price | 6-3,6-2 |
| ITF W15 Cancun | 2020/02/10 15:00 | Lian Tran v Mary Closs | 3-6,6-1,8-10 |
| ITF W15 Cancun | 2020/02/09 19:00 | Gala Arangio v Mary Closs | 1-6,0-6 |