Stadium: Court 1 Round: 62
| ITF Portugal F17 | 2018/09/17 09:00 | Joao Graca v Rafael Izquierdo Luque | 2-6,4-6 |
| ITF Portugal F13 | 2018/07/29 08:30 | Davide Albertoni v Joao Graca | 6-4,6-1 |
| ITF Portugal F13 | 2018/07/28 08:30 | Joao Graca v Fernando Andre | 6-3,6-3 |
| ITF Portugal F6 Qual | 2018/03/24 13:00 | Joao Graca v Pedro Gabriel Rodrigues | 4-6,1-6 |
| ITF Portugal F5 Qual | 2018/03/18 11:30 | Joao Graca v Gabriele Moghini | 6-2,3-6,3-6 |
| ITF Portugal F4 | 2018/03/10 12:30 | Joao Graca v Alexandre G R Girotto | 6-2,5-7,4-6 |
| ITF Portugal F3 | 2018/03/05 16:00 | Alexandre G R Girotto v Joao Graca | 4-6,7-5,6-3 |
| ITF Portugal F2 Qual | 2018/02/25 13:00 | Joffrey De Schepper v Joao Graca | 6-1,6-3 |
| ITF Portugal F12 Qual | 2018/07/23 15:45 | Dan Dowson v Afonso Portugal | 6-2,6-2 |
| ITF Portugal F9 | 2018/06/18 12:20 | Afonso Portugal v Aaron Cortes Alcaraz | 2-6,2-6 |
| ITF Portugal F9 | 2018/06/17 09:00 | Lucas Gessner v Afonso Portugal | 2-6,0-6 |
| ITF Portugal F9 | 2018/06/16 10:00 | Afonso Portugal v Guilherme Silva | 6-2,6-0 |
| ITF Portugal F8 Qual | 2018/04/14 10:30 | Manuel Almeida v Afonso Portugal | 6-2,4-6,7-6 |
| ITF Portugal F7 Qual | 2018/04/08 18:00 | Afonso Portugal v Daniel Batista | 4-6,2-6 |
| ITF Portugal F7 Qual | 2018/04/07 15:30 | Joao Guerra v Afonso Portugal | 3-6,6-2,4-6 |
| ITF Portugal F4 | 2018/03/10 11:00 | Afonso Portugal v Laelson Rodrigues | 6-7,6-1,4-6 |