| Luxembourg Open - HD - Kwal. | 2023/05/04 12:10 | Bourakkadi/Maurer v Pui/Ting | W | 0-2 |
| Luxembourg Open - HD - Kwal. | 2023/05/04 14:40 | Koppen/Vlaar v Koppen/Reumer | W | 2-0 |
| Dutch Int. - HD | 2023/04/15 13:40 | Koppen/Vlaar v Ichikawa/Umayahara | L | 0-2 |
| Dutch Int. - HD | 2023/04/15 08:50 | Jones/Stallwood v Koppen/Vlaar | W | 1-2 |
| Dutch Int. - HD | 2023/04/14 19:05 | Koppen/Vlaar v Van Delsen/Van Delsen | W | 2-0 |
| Dutch Int. - HD | 2023/04/14 13:45 | Guildea/Pontanosa v Koppen/Vlaar | W | 0-2 |
| Dutch Int. - HD | 2023/04/13 19:20 | Koppen/Vlaar v Andree/Bailoni | W | 2-0 |
| Slovenië - Future Series - HD | 2022/11/27 10:00 | Espersen/Kræmer v Koppen/Vlaar | L | 2-0 |
| Slovenië - Future Series - HD | 2022/11/26 15:30 | Koppen/Vlaar v Ducrot/Frank | W | 2-0 |