Stadium: Court 3 Round: 54 Ground: Clay
| UTR Pro Tennis Series Barcelona | 2021/08/15 06:30 | Xavier Gabarro v Alejandro Mendoza | 2-6,2-4 |
| UTR Pro Tennis Series Barcelona | 2021/08/14 09:30 | Alejandro Mendoza v Kuzey Cekirge | 6-2,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/08/13 08:00 | Alejandro Mendoza v Nicolas Bianchi | 6-4,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/08/07 15:00 | Nicolas Bianchi v Alejandro Mendoza | 6-3,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/08/06 08:30 | Jordi Munoz-Abreu v Alejandro Mendoza | 4-6,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/05 07:00 | Francois Musitelli v Alejandro Mendoza | 6-3,5-2 |
| UTR Pro Tennis Series Barcelona | 2021/08/03 11:30 | Jaume Pla Malfeito v Alejandro Mendoza | 7-6,2-6,6-7 |
| UTR Pro Tennis Series Barcelona | 2021/08/02 08:30 | Alejandro Mendoza v Adria Soriano Barrera | 3-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/15 09:30 | Nicolas Bianchi v Pablo Carretero | 0-1 |
| UTR Pro Tennis Series Barcelona | 2021/08/14 08:40 | Pablo Carretero v Markos Kalovelonis | 6-7,1-0 |
| UTR Pro Tennis Series Barcelona | 2021/08/11 08:30 | Pablo Carretero v Kuzey Cekirge | 4-6,6-0,6-0 |
| UTR Pro Tennis Series Barcelona | 2021/08/09 07:00 | Pablo Carretero v Miguel Fernando Pereira | 6-7,6-1,6-0 |
| UTR Pro Tennis Series Barcelona | 2021/08/08 10:00 | Nicolas Bianchi v Pablo Carretero | 6-1,0-6,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/08/07 13:00 | Daniel Sancho Arbizu v Pablo Carretero | 3-6,6-3,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/06 11:30 | Federico Zeballos v Pablo Carretero | 6-0,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/08/05 10:00 | Marat Deviatiarov v Pablo Carretero | 6-0,6-1 |