Round: 62 Ground: Hardcourt outdoor
| ITF Portugal F8 Qual | 2018/04/14 10:30 | Miguel Gomes v Antonio Pedro Pragana | 6-7,6-3,0-6 |
| ITF Portugal F2 Qual | 2018/02/24 12:30 | Miguel Gomes v Tony Bourcet | 4-6,2-6 |
| ITF Portugal F9 | 2018/06/16 13:00 | Alexander Donski v Russell Henderson | 2-6,6-4,6-4 |
| ITF Spain F14 Qual | 2018/06/02 11:00 | Sergi Perez Contri v Russell Henderson | 6-2,4-6,6-3 |
| ITF Portugal F8 Qual | 2018/04/16 14:45 | Hugo Gaston v Russell Henderson | 6-1,6-1 |
| ITF Portugal F8 Qual | 2018/04/15 11:30 | Russell Henderson v Tomas Almeida | 6-2,6-0 |
| ITF Portugal F7 Qual | 2018/04/08 12:00 | Dan Dowson v Russell Henderson | 6-4,6-0 |
| ITF Portugal F6 Qual | 2018/03/25 09:00 | Eduardo Dischinger v Russell Henderson | 7-6,6-2 |
| ITF Portugal F6 Qual | 2018/03/24 10:00 | Russell Henderson v Laelson Rodrigues | 6-4,4-6,6-2 |
| ITF Portugal F13 | 2017/07/26 15:30 | Adil Kalyanpur v Russell Henderson | 6-4,6-2 |