Stadium: Court 1 Round: 27 Ground: Clay
| Challenger Heilbronn MD | 2018/05/16 13:05 | Middelkoop/Molteni v Niesten/Sijsling | 7-5,6-7,9-11 |
| ITF Portugal F8 MD | 2018/04/20 14:05 | Niesten/Sijsling v Gigounon/Lamasine | 5-7,7-5,7-10 |
| ITF Portugal F8 MD | 2018/04/19 15:30 | Niesten/Sijsling v Doumbia/Reboul | 6-2,2-6,10-7 |
| ITF Portugal F8 MD | 2018/04/17 12:45 | Kolotvin/Semedo v Niesten/Sijsling | 1-6,2-6 |
| ITF Portugal F7 MD | 2018/04/13 13:00 | Niesten/Sijsling v Cabral/Cacao | 3-6,6-2,2-10 |
| Challenger Braga MD | 2018/05/08 17:55 | Junaid/Pel v Behar/Reyes-Varela | 2-6,5-7 |
| Challenger Ostrava MD | 2018/05/04 10:00 | Bonzi/Vervoort v Junaid/Pel | 7-5,6-3 |
| Challenger Ostrava MD | 2018/05/01 13:25 | Bemelmans/Griekspoor v Junaid/Pel | 3-6,1-6 |
| Challenger Francavilla MD | 2018/04/25 08:00 | Duran/Salisbury v Junaid/Pel | 6-4,6-4 |