Round: 44 Ground: Clay
| ITF Portugal F3 Qual | 2017/03/11 09:30 | Guido Marson v Guillaume Dermiens | 6-2,6-3 |
| ITF Portugal F2 | 2017/03/05 16:30 | Samuel Hodor v Guillaume Dermiens | 6-2,6-4 |
| ITF Portugal F1 | 2017/02/25 09:30 | Guillaume Dermiens v Jose Von Hafe Perez | 6-7,2-6 |
| ITF Belgium F4 Qual | 2016/07/02 07:00 | Mark-Flavius Andres v Guillaume Dermiens | 7-5,7-6 |
| ITF Belgium F2 Qual | 2016/06/19 12:50 | Maxence Beauge v Guillaume Dermiens | 6-0,7-6 |
| ITF Portugal F2 | 2017/03/04 09:30 | Valentin De Carvalho v Pedro Gabriel Rodrigues | 4-6,3-6 |