| Luxembourg Open - Doubles Hommes | 05/03 17:35 | - | Koppen/Vlaar v Begga/Labarthe | L | 1-2 | |
| Luxembourg Open - Doubles Hommes | 05/03 15:50 | - | Agarwal/Gagneja v Koppen/Vlaar | W | 0-2 | |
| Open du Luxembourg - Doubles Hommes - Qualif. | 05/02 16:25 | - | Koppen/Vlaar v Chiu/Ho | - | View | |
| Dutch Int. - Doubles Hommes | 03/15 14:00 | - | Koppen/Vlaar v Olivares/Perez | L | 0-2 | |
| Czech Open MD | 10/20 13:40 | - | Ho/Jones v Koppen/Vlaar | L | 2-0 | |
| Dutch Open MD | 10/13 17:55 | - | Koppen/Vlaar v Espersen/Rindshøj | L | 1-2 | |
| Bonn Int. MD | 06/01 16:30 | - | Koppen/Vlaar v Chen/Kai Lin | L | 1-2 | |
| Open du Luxembourg - Doubles Hommes - Qualif. | 05/04 19:30 | - | Pui/Ting v Koppen/Vlaar | L | 2-0 | |
| Open du Luxembourg - Doubles Hommes - Qualif. | 05/04 14:40 | - | Koppen/Vlaar v Koppen/Reumer | W | 2-0 | |
| Dutch Int. - Doubles Hommes | 04/15 13:40 | - | Koppen/Vlaar v Ichikawa K / Umayahara D | L | 0-2 | |
| Dutch Int. - Doubles Hommes | 04/15 08:50 | - | Jones/Stallwood v Koppen/Vlaar | W | 1-2 | |
| Dutch Int. - Doubles Hommes | 04/14 19:05 | - | Koppen/Vlaar v Van Delsen/Van Delsen | W | 2-0 |