24.08.21 | 1st round | Nicolas Barrientos/Julian Ocleppo | Mats Hermans/Bart Stevens | 6-3, 6-4 | | match details | Barletta Challenger | Clay |
08.07.21 | 1/4 | Tomas Martin Etcheverry/Renzo Olivo | Mats Hermans/Bart Stevens | 6-76, 6-1, 10-8 | | match details | Perugia Challenger | Clay |
07.07.21 | 1st round | Mats Hermans/Bart Stevens | Arthur Cazaux/Evan Furness | Arthur Cazaux/Evan Furness - walk over | | match details |
16.06.21 | 1st round | Francesco Forti/Giulio Zeppieri | Mats Hermans/Bart Stevens | 3-6, 6-3, 10-6 | | match details | Forli Challenger | Clay |
13.04.21 | 1st round | Alexander Erler/Fabian Fallert | Mats Hermans/Bart Stevens | 4-6, 6-3, 10-8 | | match details | M25 Meerbusch | Clay |
06.04.21 | 1st round | Umut Akkoyun/Cengiz Aksu | Mats Hermans/Bart Stevens | 3-6, 6-3, 10-8 | | match details | M15 Antalya | Clay |
30.03.21 | 1st round | Pablo Llamas Ruiz/Pedro Vives Marcos | Mats Hermans/Bart Stevens | 6-4, 3-6, 10-7 | | match details | M15 Antalya | Clay |