Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Idanha-A-Nova | 2021/07/16 10:00 | Carr, Simon v Anton Matusevich | 4-6,6-4,4-6 |
| ITF M25 Idanha-A-Nova | 2021/07/15 10:45 | Carr, Simon v Alejandro Moro Canas | 4-6,6-3,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/13 12:05 | Antoine Bellier v Carr, Simon | 4-6,5-7 |
| ITF M15 Almada | 2021/07/07 10:20 | Das, Terence v Carr, Simon | 3-6,1-6 |
| Coupe Davis | 2021/06/19 09:35 | Aleksandre Metreveli v Carr, Simon | 2-6,2-6 |
| Coupe Davis | 2021/06/17 09:30 | Lucas Catarina v Carr, Simon | 4-6,4-6 |
| Coupe Davis | 2021/06/16 09:50 | Alex Knaff v Carr, Simon | 3-6,2-6 |
| ITF - M15 Bucarest | 2021/05/25 15:55 | Alexis Gautier v Carr, Simon | 6-1,6-1 |
| ITF M25 Idanha-A-Nova | 2021/07/14 08:00 | Alejandro Moro Canas v Duarte Vale | 6-4,6-3 |
| ITF M15 Almada | 2021/07/10 10:20 | Daniel Cox v Duarte Vale | 6-2,6-2 |
| ITF M15 Almada | 2021/07/09 10:25 | Ugo Blanchet v Duarte Vale | 2-6,5-7 |
| ITF M15 Almada | 2021/07/08 10:55 | Duarte Vale v Patael, Ben | 6-2,6-4 |
| ITF M15 Almada | 2021/07/07 08:30 | Michiel de Krom v Duarte Vale | 3-6,3-6 |
| Challenger Porto | 2021/06/27 12:20 | Yosuke Watanuki v Duarte Vale | 6-2,6-4 |
| FPT Portugal Series | 2020/07/16 15:00 | Monteiro, Joao v Duarte Vale | 6-7,7-6,6-3 |
| FPT Portugal Series | 2020/07/15 12:30 | Duarte Vale v Stoliar, Illia | 6-2,6-2 |