| UTR Pro Tennis Series Nevada Women | 2021/05/28 15:00 | Maria Kononova v Marcela Zacarias | 0-6,2-6 |
| UTR Pro Tennis Series Dallas Women | 2021/07/09 14:30 | Mary Stoiana v Marcela Zacarias | 3-6,2-5 |
| UTR Pro Tennis Series Dallas Women | 2021/07/08 14:30 | Martina Okalova v Marcela Zacarias | 2-6,1-5 |
| UTR Pro Tennis Series Dallas Women | 2021/07/06 14:30 | Malkia Ngounoue v Marcela Zacarias | 2-6,2-5 |
| UTR Pro Tennis Series Dallas Women | 2021/07/05 20:30 | Marcela Zacarias v Daria Smetannikov | 6-2,6-3 |
| UTR Pro Tennis Series California Women | 2021/07/04 15:00 | Marcela Zacarias v Eryn Cayetano | 6-4,6-3 |
| UTR Pro Tennis Series California Women | 2021/07/03 15:00 | Marcela Zacarias v Ava Markham | 6-3,7-6 |
| UTR Pro Tennis Series California Women | 2021/07/01 16:30 | Marcela Zacarias v Taylor Johnson | 6-0,5-2 |
| UTR Pro Tennis Series California Women | 2021/06/30 15:00 | Veronika Miroshnichenko v Marcela Zacarias | 5-7,6-2,1-5 |
| UTR Pro Tennis Series Dallas Women | 2021/07/09 13:00 | Maria Kononova v Valeriya Zeleva | 7-5,2-6,2-5 |
| UTR Pro Tennis Series Dallas Women | 2021/07/08 17:30 | Maria Kononova v Rhiann Newborn | 7-5,5-3 |
| UTR Pro Tennis Series Dallas Women | 2021/07/07 16:00 | Amy Zhu v Maria Kononova | 5-7,4-5 |
| UTR Pro Tennis Series Dallas Women | 2021/07/06 18:30 | Teja Tirunelveli v Maria Kononova | 1-6,4-6 |
| UTR Pro Tennis Series Florida Women | 2021/06/13 12:00 | Victoria Allen v Maria Kononova | 6-4,3-6,2-6 |
| UTR Pro Tennis Series Florida Women | 2021/06/12 17:30 | Mary Brumfield v Maria Kononova | 0-6,6-4,3-6 |
| UTR Pro Tennis Series Florida Women | 2021/06/11 16:00 | Maria Kononova v Johanna Silva | 3-6,6-0,2-5 |
| UTR Pro Tennis Series Florida Women | 2021/06/09 14:30 | Maria Kononova v Nyjah Head | 6-3,5-2 |