Round: 62 Ground: Hardcourt outdoor
| ITF Portugal F11 Qual | 2018/07/01 09:00 | Luis Faria v Egill Sigurdsson | 6-3,6-0 |
| ITF Portugal F10 | 2018/06/23 12:00 | Egill Sigurdsson v Afonso Salgado | 0-6,1-6 |
| ITF Tunisia F22 | 2018/06/02 14:00 | Egill Sigurdsson v Luigi Sorrentino | 1-6,1-6 |
| ITF Tunisia F20 | 2018/05/19 09:00 | Egill Sigurdsson v Philip Sikman | 3-6,5-7 |
| ITF Spain F11 | 2018/05/12 11:30 | Kuzey Cekirge v Egill Sigurdsson | 6-4,6-3 |
| Davis Cup | 2018/04/06 08:00 | Egill Sigurdsson v Genajd Shypheja | 6-1,6-1 |
| Davis Cup | 2018/04/05 08:00 | Alexander Lazov v Egill Sigurdsson | 6-1,6-1 |
| Davis Cup | 2018/04/04 08:00 | Gorazd Srbljak v Egill Sigurdsson | 6-0,6-2 |
| ITF Portugal F11 Qual | 2018/06/30 08:30 | Terence Das v Nazar Achour | 6-3,6-2 |
| ITF Portugal F10 | 2018/06/24 09:30 | Nazar Achour v Russell Henderson | 0-6,3-6 |
| ITF Ukraine F3 | 2018/05/20 07:00 | Oleksandr Varichenko v Nazar Achour | 6-4,6-3 |
| ITF Ukraine F2 | 2018/05/16 12:00 | Oleg Prihodko v Nazar Achour | 6-3,6-3 |
| ITF Ukraine F2 | 2018/05/15 10:55 | Nazar Achour v Dejan Katic | 6-3,6-4 |
| ITF Ukraine F2 | 2018/05/12 09:00 | Andrii Gryniuk v Nazar Achour | 0-6,0-6 |
| ITF Ukraine F1 | 2018/05/07 07:00 | Roman Boychuk v Nazar Achour | 6-4,6-4 |
| ITF Ukraine F1 | 2018/05/06 07:00 | Nazar Achour v Ramazan Nureev | 6-2,7-6 |