Belgium: M25 Koksijde - Doubles - Main |
| Final | Brouwer G./Hermans M. | Desein N./Mertens Y. | 0:2 (2:6, 0:6) | details | 20.08.2021 |
| Semi-finals | Desein N./Mertens Y. | Gadamauri B./Rojas O. | 2:0 (6:4, 6:2) | details | 19.08.2021 |
| Quarter-finals | Beaupain S./Perchicot M. | Desein N./Mertens Y. | 1:2 (62:7, 7:5, 9:11) | details | 18.08.2021 |
| 1/8-finals | Ernaelsteen V./Pisane T. | Desein N./Mertens Y. | 1:2 (1:6, 6:4, 2:10) | details | 18.08.2021 |
France: Lille - Doubles - Main |
| Quarter-finals | Arneodo R./Nys H. | Desein N./Mertens Y. | 2:0 (6:3, 6:4) | details | 21.03.2019 |
| 1/8-finals | Melzer J./Polasek F. | Desein N./Mertens Y. | 1:2 (6:3, 4:6, 7:10) | details | 19.03.2019 |
France: Lille - Doubles - Main |
| 1/8-finals | Bambridge L./Salisbury J. | Desein N./Mertens Y. | 2:1 (6:3, 3:6, 10:5) | details | 19.03.2018 |
Finland: Tampere - Doubles - Main |
| 1/8-finals | Silva D. R./Maytin R. | Desein N./Mertens Y. | 2:0 (6:3, 6:1) | details | 22.07.2014 |