| UTR Pro Tennis Series California Women | 2020/07/11 16:00 | Closs, Mary v Guillermo, Lorraine M | 4-6,0-6 |
| US Pro Tennis Series East Coast Women | 2020/06/26 19:00 | Guillermo, Lorraine M v Closs, Mary | 6-4,4-6,7-10 |
| US Pro Tennis Series West Coast Women | 2020/06/22 17:55 | Closs, Mary v Guillermo, Lorraine M | 2-6,3-6 |
| US Pro Tennis Series West Coast Women | 2020/06/15 19:20 | Closs, Mary v Guillermo, Lorraine M | 3-6,3-6 |
| UTR Pro Tennis Series California Women | 2020/07/11 18:30 | Guillermo, Lorraine M v Montez, Pamela | 2-6,1-6 |
| UTR Pro Tennis Series California Women | 2020/07/11 16:00 | Closs, Mary v Guillermo, Lorraine M | 4-6,0-6 |
| UTR Pro Tennis Series California Women | 2020/07/10 16:00 | Sophie Chang v Guillermo, Lorraine M | 6-1,6-2 |
| UTR Pro Tennis Series California Women | 2020/07/08 19:45 | Whittle, Sophia v Guillermo, Lorraine M | 6-4,7-5 |
| UTR Pro Tennis Series California Women | 2020/07/08 17:15 | Guillermo, Lorraine M v Chavatipon, Charlotte | 6-3,6-3 |
| UTR Pro Tennis Series California Women | 2020/07/06 18:30 | Guillermo, Lorraine M v Chavatipon, Charlotte | 6-7,6-2,10-2 |
| UTR Pro Tennis Series California Women | 2020/07/06 16:00 | Whittle, Sophia v Guillermo, Lorraine M | 6-4,6-2 |
| UTR Pro Tennis Series California Women | 2020/06/27 21:00 | Whittle, Sophia v Guillermo, Lorraine M | 2-6,6-4,10-7 |
| UTR Pro Tennis Series California Women | 2020/07/12 21:00 | Closs, Mary v Mohamad, Shatoo | 0-6,1-6 |
| UTR Pro Tennis Series California Women | 2020/07/12 17:15 | Closs, Mary v Sophie Chang | 6-3,6-7,10-7 |
| UTR Pro Tennis Series California Women | 2020/07/11 21:00 | Closs, Mary v Montez, Pamela | 2-6,2-6 |
| UTR Pro Tennis Series California Women | 2020/07/11 16:00 | Closs, Mary v Guillermo, Lorraine M | 4-6,0-6 |
| UTR Pro Tennis Series California Women | 2020/07/10 19:45 | Closs, Mary v Sherif, Jwany | 6-4,0-6,7-10 |
| UTR Pro Tennis Series California Women | 2020/07/10 18:30 | Whittle, Sophia v Closs, Mary | 6-2,6-1 |
| UTR Pro Tennis Series California Women | 2020/06/26 19:00 | Lorraine Guillermo v Closs, Mary | 6-4,4-6,0-1 |
| US Pro Tennis Series East Coast Women | 2020/06/26 19:00 | Guillermo, Lorraine M v Closs, Mary | 6-4,4-6,7-10 |