| FIVB Xiamen Open | 2019/04/26 01:40 | Betzien/Erdmann v Solberg/Felipe | 0-2 |
| FIVB Xiamen Open | 2019/04/25 00:00 | Samoilovs/Smedins v Betzien/Erdmann | 2-0 |
| FIVB Xiamen Open - Damer | 2019/04/24 07:30 | Van De Velde/Varenhorst v Betzien/Erdmann | 0-2 |
| FIVB Xiamen Open - Damer | 2019/04/24 01:40 | Betzien/Erdmann v Beeler/Krattiger | 2-1 |
| FIVB Xiamen Open - Damer | 2019/03/06 04:00 | Betzien/Erdmann v Nusbaum/Plantinga | 0-2 |
| FIVB Xiamen Open - Damer | 2019/03/05 21:00 | Betzien/Erdmann v Bello/Bello | 2-1 |
| FIVB Doha | 2018/09/01 16:00 | Holler/Lückemeier v Betzien/Erdmann | 2-0 |
| FIVB Doha | 2018/09/01 11:00 | Popp/Stadie v Betzien/Erdmann | 1-2 |