Stadium: Court 6 Vale do Lobo Round: 25
| ITF Switzerland F4 | 2018/08/28 12:20 | Marc Dijkhuizen v Christian Lindell | 1-6,2-6 |
| ITF Netherlands F5 | 2018/08/22 08:00 | Marc Dijkhuizen v Tom Kocevar-Desman | 3-6,4-6 |
| ITF Netherlands F5 | 2018/08/21 12:20 | Marc Dijkhuizen v Ruben Konings | 6-2,6-1 |
| ITF Netherlands F4 | 2018/08/14 10:00 | Marc Dijkhuizen v Niels Lootsma | 1-6,2-6 |
| ITF Finland F1 | 2018/07/31 08:35 | Marc Dijkhuizen v Hugo Pontico | 4-6,5-7 |
| ITF Lithuania F1 | 2018/07/24 14:10 | Marc Dijkhuizen v Robertas Vrzesinski | 5-7,2-6 |
| ITF Estonia F1 | 2018/07/18 11:00 | Joao Lucas Reis da Silva v Marc Dijkhuizen | 6-2,7-5 |
| ITF Estonia F1 | 2018/07/17 10:00 | Roberts Grinvalds v Marc Dijkhuizen | 2-6,1-6 |
| ITF Portugal F20 | 2018/10/11 16:55 | Gabriel Schmidt v Fred Gil | 7-6,7-6 |
| ITF Portugal F20 | 2018/10/10 09:00 | Christoffer Solberg v Fred Gil | 2-6,4-6 |
| ITF Portugal F19 | 2018/10/07 09:30 | Joao Monteiro v Fred Gil | 2-6,5-7 |
| ITF Portugal F19 | 2018/10/06 09:30 | Ryan Shane v Fred Gil | 3-6,2-6 |
| ITF Portugal F19 | 2018/10/04 12:55 | Igor Sao Thiago v Fred Gil | 1-6,0-6 |
| ITF Portugal F19 | 2018/10/03 11:55 | Tomas Almeida v Fred Gil | 0-6,3-6 |
| ITF Portugal F18 | 2018/09/28 09:30 | Fred Gil v Lloyd Glasspool | 5-7,4-6 |
| ITF Portugal F18 | 2018/09/27 10:15 | Fred Gil v Diego Matos | 6-4,6-0 |