Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| UTR Pro Tennis Series Dallas Women | 2021/07/11 13:00 | Marcela Zacarias v Catherine Harrison | 7-6,5-1 |
| ITF Women Orlando | 2017/01/14 23:00 | Catherine Harrison v Marcela Zacarias | 6-0,5-7,5-7 |
| 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 |
| ITF W60 Berkeley | 2021/09/29 17:00 | Marcela Zacarias v Katie Volynets | 7-6,3-6,6-2 |
| ITF W25 Redding | 2021/10/09 20:00 | Catherine Harrison v Katie Swan | 3-6,6-4,7-5 |
| ITF W25 Redding | 2021/10/08 21:30 | Victoria Duval v Catherine Harrison | 1-6,3-6 |
| ITF W25 Redding | 2021/10/07 18:25 | Connie Ma v Catherine Harrison | 3-6,6-2,2-6 |
| ITF W25 Redding | 2021/10/06 19:55 | Catherine Harrison v Kyoka Okamura | 6-2,6-1 |
| WTA Chicago | 2021/09/25 19:35 | Catherine Harrison v Rebecca Marino | 6-3,3-6,2-6 |
| ITF W25 Fort Worth | 2021/09/23 17:15 | Alexandra Bozovic v Catherine Harrison | 7-6,7-6 |
| ITF W25 Fort Worth | 2021/09/21 17:20 | Jessie Aney v Catherine Harrison | 5-7,3-6 |
| WTA Cleveland | 2021/08/23 16:00 | Catherine Harrison v Caroline Garcia | 1-6,2-6 |