| SaarLorLux Open 2019, XD | 2019/10/29 16:20 | Kaesbauer P / Kaepplein L v Villeger W / Bauer S | W | 2-1 |
| SaarLorLux Open 2019, XD | 2019/10/29 16:20 | Mairs G / Williams V v Seidel / Efler | W | 0-2 |
| Open de France - Doubles Mixtes | 2019/10/23 08:10 | Hoki T / Nagahara W v Seidel / Efler | L | 2-1 |
| Denmark Open XD | 2019/10/16 07:40 | Chopra P J / Reddy N S v Seidel / Efler | L | 2-0 |
| Dutch Open XD | 2019/10/08 16:20 | Ren / Zhou v Seidel / Efler | L | 2-1 |
| Fuzhou China Open 2019, XD | 2019/09/19 04:30 | Zheng/Huang v Seidel / Efler | L | 2-0 |
| Fuzhou China Open 2019, XD | 2019/09/17 07:15 | Delrue/Gicquel v Seidel / Efler | W | 0-2 |
| Vietnam Open XD | 2019/09/13 10:00 | Urai T / Miyaura R v Seidel / Efler | L | 2-1 |
| Vietnam Open XD | 2019/09/12 06:00 | Chen X / Zhou C v Seidel / Efler | W | 0-2 |