| UTR Pro Tennis Series - Kalifornia - ženy | 2021/10/11 15:00 | Emmie Moore v Marcela Zacarias | 0-6,1-6 |
| ITF - W60 Las Vegas | 2021/10/08 22:10 | Marcela Zacarias v Emina Bektas | 0-6,5-7 |
| ITF - W60 Las Vegas | 2021/10/07 19:45 | Marcela Zacarias v Erica Oosterhout | 6-1,6-1 |
| ITF - W60 Las Vegas | 2021/10/06 16:55 | Conny Perrin v Marcela Zacarias | 3-6,5-7 |
| ITF - W60 Las Vegas | 2021/10/04 20:00 | Marcela Zacarias v Maria Kononova | 6-1,6-3 |
| ITF - W60 Berkeley | 2021/10/03 19:40 | Marcela Zacarias v Usue Maitane Arconada | 1-6,3-6 |
| ITF - W60 Berkeley | 2021/10/01 17:00 | Emma Navarro v Marcela Zacarias | 5-7,7-5,2-6 |
| ITF - W60 Berkeley | 2021/09/30 17:00 | Reese Brantmeier v Marcela Zacarias | 7-5,2-6,1-6 |