Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF - Castelo Branco M15 | 2021/07/25 11:00 | David Quayle v Guilherme Sousa Severin | 2-6,3-6 |
| ITF - Idanha-A-Nova M25 | 2021/07/18 13:00 | Mario G Fernandez v Guilherme Sousa Severin | 6-3,6-4 |
| ITF - Idanha-A-Nova M25 | 2021/07/12 08:00 | Daniel Rodrigues v Guilherme Sousa Severin | 4-6,6-2,11-9 |
| ITF - Almada M15 | 2021/07/04 09:30 | Goncalo Falcao v Guilherme Sousa Severin | 7-5,7-5 |
| ITF - Monastir M15 | 2021/06/14 12:00 | Ajeet Rai v Guilherme Sousa Severin | 6-0,6-2 |
| ITF - Monastir M15 | 2021/06/14 08:00 | Guilherme Sousa Severin v Kazuma Kawachi | 6-4,4-6,10-4 |
| ITF - Monastir M15 | 2021/06/13 11:30 | Seth Seely v Guilherme Sousa Severin | 1-6,1-6 |
| ITF - Monastir M15 | 2021/06/08 11:00 | Guilherme Sousa Severin v Thomas Fancutt | 6-2,4-6,4-6 |
| ITF - Castelo Branco M15 | 2021/07/25 14:30 | Henrique Petiz v Luca Sanchez | 1-6,1-6 |
| ITF - Idanha-A-Nova M25 | 2021/07/19 11:20 | John Echeverria v Luca Sanchez | 6-3,6-1 |
| ITF - Idanha-A-Nova M25 | 2021/07/18 13:00 | Luca Sanchez v Mikel Martinez | 6-7,6-4,10-7 |
| ITF - Monastir M15 | 2020/12/30 08:00 | Luca Sanchez v Perry Gregg | 6-3,4-6,6-7 |
| ITF - Monastir M15 | 2020/12/28 12:00 | Luca Sanchez v Brandon Stringfellow | 7-6,6-4 |
| ITF - Monastir M15 | 2020/12/28 08:00 | Luca Sanchez v Alex Ganchev | 4-6,6-3,10-2 |
| ITF - Monastir M15 | 2020/12/24 10:30 | David Pichler v Luca Sanchez | 6-3,7-6 |
| ITF - Monastir M15 | 2020/12/21 14:30 | Luca Sanchez v Paul Spencer | 6-2,6-2 |