Stadium: Centre Court Round: 62 Ground: Clay
| ITF M25 Eupen | 2021/09/06 07:30 | Guillaume Dermiens v Adan Freire Da Silva | 7-6,6-1 |
| ITF M25 Eupen | 2021/09/05 09:00 | Guillaume Dermiens v Gosse Panagoulopoulos | 6-2,6-2 |
| ITF M15 Huy | 2021/08/24 09:20 | Guillaume Dermiens v Thorsten Sollie | 4-6,3-6 |
| ITF M15 Huy | 2021/08/23 11:35 | Guillaume Dermiens v Charles Tzicas | 6-3,6-0 |
| ITF M15 Huy | 2021/08/22 13:10 | Guillaume Dermiens v Cedric Stanke | 6-3,6-1 |
| ITF M25 Koksijde | 2021/08/17 08:00 | Guillaume Dermiens v Francesco Passaro | 2-6,1-6 |
| ITF M25 Koksijde | 2021/08/16 11:50 | Guillaume Dermiens v Alen Moritz Hodzic | 6-4,6-3 |
| ITF M15 Esch/Alzette | 2021/07/21 14:25 | Guillaume Dermiens v Patrick Kypson | 1-6,3-6 |
| ITF M25 Eupen | 2021/09/06 07:30 | Marcel Politowicz v Loic Cloes | 3-6,3-6 |
| ITF M25 Eupen | 2021/09/05 09:45 | Dawid Taczala v Loic Cloes | 3-6,1-6 |
| ITF M15 Allershausen | 2021/08/30 10:30 | Loic Cloes v Alexander Wolfschmidt | 5-7,6-3,8-10 |
| ITF M15 Huy | 2021/08/24 09:30 | Loic Cloes v Benjamin Dhoe | 3-6,2-6 |
| ITF M25 Koksijde | 2021/08/17 09:30 | Mathys Erhard v Loic Cloes | 7-5,6-4 |
| ITF M25 Koksijde | 2021/08/16 09:40 | Loic Cloes v Tom Clavel | 6-4,6-4 |
| ITF M25 Koksijde | 2021/08/15 09:40 | Loic Cloes v Christian Djonov | 6-1,7-6 |
| ITF M25 Wetzlar | 2021/08/02 08:00 | Stepan Pecak v Loic Cloes | 6-4,4-6,10-8 |