| FIVB Doha | 09/01 08:00 | 1 | Walkenhorst/Winter v Karpa/Sievers | 2-0 | |
| FIVB Doha | 08/31 10:00 | 1 | Holler/Lückemeier v Karpa/Sievers | 2-1 | |
| FIVB Doha | 08/12 06:40 | 1 | Karpa/Sievers v AS Sale | 0-2 | |
| FIVB Doha | 08/11 17:30 | 1 | Karpa/Sievers v Maurer/Westphal | Postponed | |
| FIVB Doha | 08/11 13:10 | 1 | Noack/Pfretzschner v Karpa/Sievers | 0-2 | |
| FIVB Doha | 08/11 09:00 | 1 | Popp/Stadie v Karpa/Sievers | 0-2 | |
| FIVB Xiamen Open Women | 08/08 06:50 | 1 | Jonas Karpa/Sievers v Schnetzer/Mullner | 0-2 | |
| FIVB Xiamen Open Women | 07/28 09:50 | 1 | Molin/Tholse v Karpa/Sievers | 2-0 | |
| FIVB Xiamen Open Women | 07/27 12:50 | 1 | Appelgren/Boman v Karpa/Sievers | 2-0 | |
| FIVB Doha | 07/21 14:50 | 1 | Karpa/Sievers v Glücklederer/Rudolf | 2-1 | |
| FIVB Doha | 07/21 13:10 | 1 | Holler/Lückemeier v Karpa/Sievers | 2-1 | |
| FIVB Doha | 07/21 09:00 | 1 | Karpa/Sievers v Santos Pereira/Lohmann | 2-0 | |
| FIVB Doha | 06/30 11:15 | - | Schröder/Becker v Karpa/Sievers | 2-0 | |
| FIVB Doha | 06/30 07:10 | 1 | Karpa/Sievers v Santos Pereira/Wernitz | 2-1 | |
| FIVB Xiamen Open Women | 06/22 12:00 | 1 | Burlacu/MacNeil v Karpa/Sievers | 2-1 | |
| FIVB Xiamen Open Women | 06/22 07:20 | 1 | Karpa/Sievers v Huerta/Huerta A. | 1-2 | |
| FIVB Xiamen Open Women | 06/21 12:10 | 1 | Karpa/Sievers v Yildirim/Susam | 2-0 | |
| FIVB Xiamen Open Women | 06/21 12:10 | - | Jonas Karpa/Sievers v Yildirim/Susam | 19-10 | |
| FIVB Xiamen Open | 06/16 16:30 | 1 | O'Dea/Wernitz v Karpa/Sievers | 2-0 | |
| FIVB Xiamen Open | 06/16 14:00 | 1 | Karpa/Sievers v Winter/Harms | 2-0 | |
| FIVB Xiamen Open | 06/16 09:50 | - | Schumann/Harms v Karpa/Sievers | 14-12 | |
| FIVB Xiamen Open Women | 06/16 09:50 | 1 | Schumann/Harms v Karpa/Sievers | 2-1 | |
| FIVB Xiamen Open Women | 06/15 15:00 | 1 | Karpa/Sievers v Lohmann/Popp | 2-1 | |
| FIVB Doha | 06/09 15:30 | 1 | Karpa/Sievers v Becker/Schröder | 1-2 | |
| FIVB Doha | 06/09 12:30 | 1 | Harms/Harms v Karpa/Sievers | 0-2 | |
| FIVB Doha | 06/09 09:30 | 1 | Wolf/Wolf v Karpa/Sievers | 0-2 | |
| FIVB Xiamen Open Women | 06/08 13:15 | 1 | Karpa/Sievers v Brand/Reinhardt | 2-0 | |
| FIVB Xiamen Open Women | 06/08 11:00 | 1 | Jonas Karpa/Sievers v Menzel/Warsawski | 0-2 | |
| FIVB Xiamen Open Women | 06/02 11:00 | 1 | Denin/Denysenko v Karpa/Sievers | 2-1 | |
| FIVB Xiamen Open Women | 06/02 06:50 | 1 | Rosager/Trans v Sievers/Karpa | 2-0 |