| Slovenia Future Series - vegyes páros | 2021/11/27 11:00 | Wassink/De Wit v Muurholm/Lober | L | 1-2 |
| Belgian Int. - vegyespáros | 2023/09/15 08:00 | Ellis/Smith v Sondergaard/Bergstein | L | 2-0 |
| Belgian Int. - vegyespáros | 2023/09/14 12:15 | Sondergaard/Bergstein v Green/Tolman | W | 2-1 |
| Slovenia Open - vegyes páros | 2023/05/20 14:00 | Vestergaard/Busch v Sondergaard/Bergstein | L | 2-0 |
| Slovenia Open - vegyes páros | 2023/05/20 07:00 | Sondergaard/Bergstein v Chiang/Jheng | W | 2-1 |
| Slovenia Open - vegyes páros | 2023/05/19 09:00 | Sondergaard/Bergstein v Pangestu/Maftuha | W | 2-0 |
| Luxembourg Open XD | 2023/05/07 08:20 | Sondergaard/Bergstein v Scheiel/Volkmann | L | 0-2 |
| Luxembourg Open XD | 2023/05/06 14:00 | Kruijt/Chen v Sondergaard/Bergstein | W | 0-2 |
| Luxembourg Open XD | 2023/05/06 08:00 | Sondergaard/Bergstein v Bourakkadi/Michalski | W | 2-0 |