Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| WTA Midland | 2021/11/02 15:00 | Marcela Zacarias v Catherine Harrison | 4-6,6-4,3-6 |
| ITF W80 Tyler | 2021/10/30 17:00 | Marcela Zacarias v Misaki Doi | 5-7,0-6 |
| ITF W80 Tyler | 2021/10/29 19:15 | Madison Brengle v Marcela Zacarias | 4-6,3-6 |
| ITF W80 Tyler | 2021/10/28 20:40 | Whitney Osuigwe v Marcela Zacarias | 3-6,6-1,5-7 |
| ITF W80 Tyler | 2021/10/27 22:45 | Marcela Zacarias v Xiyu Wang | 6-4,7-5 |
| UTR Pro Tennis Series California Women | 2021/10/24 15:00 | Marcela Zacarias v Rebecca Lynn | 6-1,6-1 |
| UTR Pro Tennis Series California Women | 2021/10/23 23:30 | Marcela Zacarias v Aspen Schuman | 6-2,5-1 |
| UTR Pro Tennis Series California Women | 2021/10/21 18:00 | Marcela Zacarias v Nazari Urbina | 6-0,5-1 |
| UTR Pro Tennis Series Florida Women | 2021/11/06 14:00 | Verginie Tchakarova v Isabella B Aguirre | 6-4,5-3 |
| UTR Pro Tennis Series Florida Women | 2021/11/05 16:00 | Bayley Sheinin v Isabella B Aguirre | 6-4,6-7,5-6 |
| UTR Pro Tennis Series Florida Women | 2021/11/04 13:30 | Isabel Pacheco v Isabella B Aguirre | 7-6,5-2 |
| UTR Pro Tennis Series Florida Women | 2021/11/03 14:00 | Rushri Wijesundera v Isabella B Aguirre | 6-2,2-6,5-3 |
| UTR Pro Tennis Series Florida Women | 2021/11/01 16:00 | Luciana Perry v Isabella B Aguirre | 6-3,7-6 |
| ITF W15 Cancun | 2021/10/10 14:00 | Chelsea Fontenel v Isabella B Aguirre | 6-0,6-4 |
| ITF W15 Cancun | 2021/10/03 21:00 | Isabella B Aguirre v Koral Koldobski | 6-7,4-6 |
| ITF W15 Cancun | 2021/09/26 17:30 | Isabella B Aguirre v Vanesa Suarez | 6-4,5-7,3-10 |