| Syed Modi Int. XD | 11/29 10:45 | 3 | Gicquel/Delrue v Seidel/Efler | L | 2-1 | |
| Syed Modi Int. XD | 11/28 11:50 | 4 | Seidel/Efler v Chopra/N. Sikki | W | 2-1 | |
| Syed Modi Int. XD | 11/27 13:35 | 5 | Seidel/Efler v Garaga/S Ram | W | 2-0 | |
| Hong Kong Open XD | 11/12 09:30 | 5 | Seidel/Efler v Wang/Huang | L | 0-2 | |
| China Open XD | 11/05 02:00 | 5 | Huang/Zheng v Seidel/Efler | L | 2-0 | |
| SaarLorLux Open XD | 11/01 14:00 | 3 | Chen/Wei Jie Dong v Seidel/Efler | L | 2-0 | |
| SaarLorLux Open XD | 10/31 09:45 | 4 | Kaesbauer/Kaepplein v Seidel/Efler | W | 0-2 | |
| SaarLorLux Open XD | 10/29 16:20 | 5 | Mairs/Williams v Seidel/Efler | W | 0-2 | |
| French Open XD | 10/23 08:10 | 5 | Nagahara/Hoki v Seidel/Efler | L | 2-1 | |
| Denmark Open XD | 10/16 07:40 | 5 | Chopra/N. Sikki v Seidel/Efler | L | 2-0 | |
| Dutch Open XD | 10/08 16:20 | 5 | Zhou/Ren v Seidel/Efler | L | 2-1 | |
| China Open XD | 09/19 04:30 | 4 | Zheng/Huang v Seidel/Efler | L | 2-0 | |
| China Open XD | 09/17 07:15 | 5 | Gicquel/Delrue v Seidel/Efler | W | 0-2 | |
| Vietnam Open XD | 09/13 10:00 | 3 | Miyaura/Urai v Seidel/Efler | L | 2-1 | |
| Vietnam Open XD | 09/12 06:00 | 4 | Chen/Zhou v Seidel/Efler | W | 0-2 | |
| Vietnam Open XD | 09/11 03:40 | 5 | Pratama/Awanda v Seidel/Efler | W | 0-2 | |
| World Championships XD | 08/19 13:40 | 6 | Seidel/Efler v Rivaldy/Mentari | L | 0-2 | |
| Thailand Open XD | 07/31 08:20 | 5 | Tang/Tse v Seidel/Efler | L | 2-0 | |
| Japan Open XD | 07/23 03:40 | 5 | Ponnappa/Rankireddy v Seidel/Efler | L | 2-0 | |
| Indonesia Open XD | 07/16 06:55 | 5 | Efler/Seidel v Smith/Ellis | L | 0-2 | |
| US Open XD | 07/13 00:50 | 3 | Yang/Hu v Seidel/Efler | L | 2-1 | |
| US Open XD | 07/11 21:25 | 4 | Lee/Yang v Seidel/Efler | W | 1-2 | |
| US Open XD | 07/10 00:40 | 5 | Pongnairat/Gozali v Seidel/Efler | W | 1-2 | |
| Azerbaijan Int. XD | 06/09 06:00 | - | Gicquel/Delrue v Seidel/Efler | L | 2-1 | |
| Sudirman Cup XD | 05/19 12:00 | - | Seidel/Efler v Bar Netzer/Polikarpova | W | 2-0 | |
| New Zealand Open XD | 04/30 03:20 | 5 | Chang/Ng v Seidel/Efler | L | 2-1 | |
| Swiss Open XD | 03/14 11:00 | 4 | Yao Lu/Lee v Seidel/Efler | L | 2-1 | |
| Swiss Open XD | 03/12 18:30 | 5 | Jille/Van Der Aar v Seidel/Efler | W | 1-2 | |
| All England Open | 03/06 16:05 | 5 | Lane/Pugh v Seidel/Efler | L | 2-0 | |
| German Open XD | 02/26 19:00 | 5 | Seidel/Efler v Mikkelsen/Surrow | L | 1-2 |