| UTR Pro Tennis Series Barcelona | 2021/06/20 07:00 | Constant De La Bassetiere v Marcelo Zormann | 6-7,1-5 |
| UTR Pro Tennis Series Barcelona | 2021/06/13 08:30 | Antoine Escoffier v Marcelo Zormann | 6-2,5-0 |
| UTR Pro Tennis Series Barcelona | 2021/06/12 11:30 | Marcelo Zormann v Oscar Jose Gutierrez | 3-0 |
| UTR Pro Tennis Series Barcelona | 2021/06/11 08:00 | Marcelo Zormann v Xavier Gabarro | 5-7,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/10 11:00 | Marcelo Zormann v Diego F Flores | 7-6,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/06/09 12:30 | Kuzey Cekirge v Marcelo Zormann | 6-7,3-5 |
| UTR Pro Tennis Series Barcelona | 2021/06/08 11:30 | Alexandre Reco v Marcelo Zormann | 5-7,1-5 |
| UTR Pro Tennis Series Bucharest | 2021/06/05 08:30 | Marcelo Zormann v Stefan Palosi | 6-7,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/21 08:00 | Mario Mansilla Diez v Alvaro Bueno Gil | 6-2,4-6,5-3 |
| ITF M15 Marbella | 2021/05/25 09:00 | Max Alcala Gurri v Mario Mansilla Diez | 6-2,6-4 |
| ITF M15 Valldoreix | 2021/05/09 14:00 | Alvaro Lopez San Martin v Mario Mansilla Diez | 6-3,6-0 |
| ITF M15 Majadahonda | 2021/05/03 12:00 | Arthur Fils v Mario Mansilla Diez | 7-6,6-2 |
| ITF M15 Antalya | 2021/04/04 06:30 | Mario Mansilla Diez v Viacheslav Bielinskyi | 6-2,1-6,4-10 |
| ITF M15 Antalya | 2021/03/28 06:30 | Paul Woerner v Mario Mansilla Diez | 2-6,6-2,11-9 |
| ITF M25 La Nucia | 2021/03/14 08:00 | Carlos Lopez Montagud v Mario Mansilla Diez | 6-2,6-4 |
| ITF M15 La Nucia | 2021/03/09 11:00 | Mario Mansilla Diez v Miguel Damas | 6-3,3-6,3-10 |