Stadium: Court 6 Round: 44 Ground: Hardcourt outdoor
| ITF W15 Cancun | 2021/09/19 17:00 | Maria I Yapur Lopez v Natalia Fehr | 6-4,7-6 |
| ITF W15 Cancun | 2021/09/28 19:10 | Jessica Hinojosa Gomez v Maria I Yapur Lopez | 7-5,6-1 |
| ITF W15 Cancun | 2021/09/22 16:00 | Maria I Yapur Lopez v Maria Jose Portillo Ramirez | 0-6,1-6 |
| ITF W15 Cancun | 2021/09/20 17:30 | Maria I Yapur Lopez v Sarah Pang | 6-4,6-2 |
| ITF W15 Cancun | 2021/09/19 17:00 | Maria I Yapur Lopez v Natalia Fehr | 6-4,7-6 |
| ITF W25 Medellin | 2021/09/13 17:30 | Maria I Yapur Lopez v Ariella Burstein | 1-6,6-4,9-11 |
| ITF W15 Ibague | 2021/09/07 15:00 | Ana Maria Becerra v Maria I Yapur Lopez | 6-2,6-0 |
| ITF W60 Colina | 2019/11/04 17:25 | Andrea Gamiz v Maria I Yapur Lopez | 6-2,6-1 |
| ITF W15 Santiago | 2019/10/03 14:05 | Fernanda Brito v Maria I Yapur Lopez | 6-1,6-2 |
| ITF W15 Cancun | 2021/09/27 17:30 | Brittany Collens v Natalia Fehr | 6-0,6-0 |
| ITF W15 Cancun | 2021/09/26 17:30 | Sylvia Schenck v Natalia Fehr | 2-6,0-6 |
| ITF W15 Cancun | 2021/09/19 17:00 | Maria I Yapur Lopez v Natalia Fehr | 6-4,7-6 |
| ITF W25 Vigo | 2021/08/23 09:00 | Alicia Barnett v Natalia Fehr | 6-0,6-0 |
| ITF W25 Ourense | 2021/08/15 16:00 | Sakura Hosogi v Natalia Fehr | 6-0,6-1 |
| ITF W15 Savitaipale | 2021/07/26 07:00 | Marissa Minetti v Natalia Fehr | 6-3,6-1 |
| ITF W15 Vilnius | 2021/06/06 09:00 | Natalia Fehr v Saara Orav | 1-6,1-6 |
| ITF W15 Banja Luka | 2021/05/30 08:15 | Mia Ristic v Natalia Fehr | 6-2,6-0 |