| European Team Championships MD | 2021/02/19 17:00 | Astrup/Rasmussen v Lamsfuss/Seidel | W | 0-2 |
| European Team Championships MD | 2021/02/17 16:40 | Kolding/Rasmussen v Lamsfuss/Seidel | W | 1-2 |
| European Team Championships MD | 2021/02/16 17:00 | Grimley/Hall v Lamsfuss/Seidel | W | 0-2 |
| Thailand Open - Herredouble | 2021/01/22 05:00 | Wang/Lee v Lamsfuss/Seidel | L | 2-0 |
| Thailand Open - Herredouble | 2021/01/21 08:30 | Fikri/Maulana v Lamsfuss/Seidel | W | 0-2 |
| Thailand Open - Herredouble | 2021/01/20 07:25 | Lamsfuss/Seidel v Gaterahong/Tulamok | W | 2-0 |
| Thailand Open - Herredouble | 2021/01/13 05:00 | Jomkoh/Kedren v Lamsfuss/Seidel | L | 2-0 |
| SaarLorLux Open MD | 2020/10/27 18:00 | Lecq/Jille v Lamsfuss/Seidel | L | 2-1 |
| SaarLorLux Open MD | 2020/10/31 14:30 | Jansen/Kaesbauer v Lundgaard/Thyrri | L | 1-2 |
| SaarLorLux Open MD | 2020/10/30 13:10 | Sondergaard/Toft v Jansen/Kaesbauer | W | 1-2 |
| SaarLorLux Open MD | 2020/10/29 12:00 | Jansen/Kaesbauer v Datko/Scheiel | W | 2-0 |
| SaarLorLux Open MD | 2020/10/27 15:00 | Jansen/Kaesbauer v Corvee/Lovang | W | 2-0 |
| Denmark Open - Herredouble | 2020/10/16 14:00 | Lane/Vendy v Jansen/Kaesbauer | L | 2-0 |
| Denmark Open - Herredouble | 2020/10/15 10:25 | Dunn/Hall v Jansen/Kaesbauer | W | 0-2 |
| Spain Masters - Herredouble | 2020/02/20 14:15 | Lu/Yang v Jansen/Kaesbauer | L | 2-1 |
| Spain Masters - Herredouble | 2020/02/18 12:40 | Jansen/Kaesbauer v Maas/Tabeling | W | 2-1 |