Stadium: Grandstand Round: 19 Ground: Clay
| Challenger Todi | 2021/07/11 09:55 | Matheus P De Almeida v Stephane Robert | 6-1,6-1 |
| ITF M25 Casinalbo | 2021/07/09 14:00 | Franco Agamenone v Matheus P De Almeida | 6-2,6-7,7-5 |
| ITF M25 Casinalbo | 2021/07/08 08:45 | Matheus P De Almeida v Francesco Maestrelli | 6-3,6-3 |
| ITF M25 Casinalbo | 2021/07/07 08:00 | Matheus P De Almeida v Augusto Virgili | 6-2,6-3 |
| ITF M25 Casinalbo | 2021/07/06 11:40 | Matheus P De Almeida v Luca Potenza | 6-4,6-2 |
| ITF M25 Bourg-en-Bresse | 2021/07/02 14:30 | Viktor Durasovic v Matheus P De Almeida | 6-4,6-7,6-4 |
| ITF M25 Bourg-en-Bresse | 2021/07/01 11:00 | Matheus P De Almeida v Thiago Agustin Tirante | 6-3,7-6 |
| ITF M25 Bourg-en-Bresse | 2021/06/30 11:10 | Nazim Makhlouf v Matheus P De Almeida | 2-6,4-6 |
| Challenger Todi | 2021/07/11 08:00 | Alessio De Bernardis v Federico Zeballos | 5-7,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/24 08:30 | Kuzey Cekirge v Federico Zeballos | 1-6,6-4,7-5 |
| UTR Pro Tennis Series Barcelona | 2021/06/23 09:30 | Federico Zeballos v Jay Friend | 6-3,5-1 |
| UTR Pro Tennis Series Barcelona | 2021/06/22 12:30 | Federico Zeballos v Juan C Garcia Garcia | 6-3,5-4 |
| UTR Pro Tennis Series Barcelona | 2021/06/21 08:00 | Alejandro Garcia v Federico Zeballos | 3-6,5-7 |
| Challenger Prostejov | 2021/06/13 12:30 | Federico Zeballos v Skander Mansouri | 6-7,0-6 |
| Challenger Oeiras | 2021/05/24 10:00 | Filip Cristian Jianu v Federico Zeballos | 6-4,7-5 |
| Challenger Oeiras | 2021/05/23 10:00 | Federico Zeballos v Vladyslav Orlov | 1-6,6-0,7-6 |