| ITF Belgio F12 DM | 09/06 16:55 | 27 | Harris/Niklas-Salminen v Mertens/Wegner | 6-0,6-2 | |
| ITF Belgio F12 DM | 09/04 13:45 | 26 | Mertens/Wegner v Gelade/Roelant | 6-7,6-2,10-5 | |
| ITF Germania F10 DM | 08/10 12:30 | 27 | Banes/Van Peperzeel v Mertens/Wegner | 6-0,6-2 | |
| ITF Germania F10 DM | 08/09 12:55 | 26 | Albuszies/Rehberg v Mertens/Wegner | 4-6,1-6 | |
| ITF Germania F9 DM | 08/01 15:20 | 26 | Dutra Da Silva/Pereira v Mertens/Wegner | 6-1,6-0 | |
| ITF Germania F8 DM | 07/19 14:25 | 26 | Mertens/Wegner v Neuchrist/Pichler | 2-6,4-6 | |
| ITF Germania F2 DM | 01/19 16:50 | 27 | Mertens/Wegner v Kahlke/Otte | 0-6,2-6 | |
| ITF Germania F2 DM | 01/17 14:15 | 26 | Loccisano/Loccisano v Mertens/Wegner | 2-6,2-6 |