| ITF W15 Cancun | 2021/11/24 18:50 | Marcela Zacarias v Isabella B Aguirre | 6-0,7-5 |
| 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 |