Stadium: Campo 1 Round: 25 Ground: Clay
| ITF W25 Medellin | 2021/09/13 15:00 | Alica Rusova v Kelly L Vargas Gonzalez | 7-5,6-1 |
| ITF W15 Ibague | 2021/09/07 15:00 | Kelly L Vargas Gonzalez v Yuliana Monroy | 1-6,2-6 |
| WTA Bogota | 2021/04/03 19:30 | Giulia Gatto Monticone v Kelly L Vargas Gonzalez | 6-3,6-0 |
| ITF W60 Santiago | 2021/11/10 14:30 | Ekaterine Gorgodze v Maria F Herazo Gonzalez | 7-5,5-7,6-2 |
| ITF W60 Santiago | 2021/11/08 13:55 | Maria F Herazo Gonzalez v Daniela Macarena Lopez | 6-0,6-2 |
| ITF W25 Guayaquil | 2021/10/29 15:00 | Carolina Alves v Maria F Herazo Gonzalez | 6-3,6-2 |
| ITF W25 Guayaquil | 2021/10/28 16:35 | Rushri Wijesundera v Maria F Herazo Gonzalez | 1-6,3-6 |
| ITF W25 Guayaquil | 2021/10/26 16:30 | Maria F Herazo Gonzalez v Dasha Ivanova | 6-2,6-4 |
| ITF W25 Lima | 2021/10/12 15:00 | Maria F Herazo Gonzalez v Katarina Jokic | 4-6,6-2,2-6 |
| ITF W25 Lima | 2021/10/05 18:50 | Maria F Herazo Gonzalez v Bibiane Schoofs | 0-6,1-6 |
| ITF W25 Medellin | 2021/09/14 18:00 | Sofia Sewing v Maria F Herazo Gonzalez | 6-1,2-6,6-2 |