Frederik Colberg
Frederik Colberg is a Danish badminton player from Holbæk. He won his first international title at the 2010 Iceland International tournament in the mixed doubles event partnered with Mette Poulsen. Teamed-up with Rasmus Fladberg, they manage to claimed the men's doubles title at the 2017 National Championships.
Achievements
BWF International Challenge/Series
Men's doubles| Year | Tournament | Partner | Opponent | Score | Result |
| 2018 | Spanish International |  Joachim Fischer Nielsen |  Bodin Issara Maneepong Jongjit | 21–23, 21–19, 21–15 | Winner |
| 2017 | Hungarian International | Rasmus Fladberg | Joel Eipe Philip Seerup | 21–18, 21–14 | Winner |
| 2017 | Belgian International | Rasmus Fladberg |  Peter Briggs Tom Wolfenden | 16–21, 21–13, 21–6 | Winner |
| 2017 | Austrian Open | Rasmus Fladberg |  Takuto Inoue Yuki Kaneko | 19–21, 17–21 | Runner-up |
| 2016 | Yonex / K&D Graphics International | Rasmus Fladberg |  B. R. Sankeerth Nyl Yakura | 21–8, 18–21, 21–6 | Winner |
| 2016 | Hungarian International | Rasmus Fladberg |  Danny Bawa Chrisnanta Hendra Wijaya | 7–11, 15–14, 11–7, 9–11, 8–11 | Runner-up |
| 2016 | Belgian International | Rasmus Fladberg |  Lu Ching-yao Yang Po-han | 13–21, 13–21 | Runner-up |
| 2014 | Hellas International | Mikkel Mikkelsen | Mathias Christiansen David Daugard | 0–0 Retired | Runner-up |
| 2013 | Hungarian International | Mikkel Mikkelsen |  Albert Saputra Indra Viki Okvana | 16–21, 21–23 | Runner-up |
| 2010 | Iceland International | Kasper Paulsen | Emil Holst Mikkel Mikkelsen | 15–21, 17–21 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2013 | Croatian International | Sara Thygesen | Niclas Nohr Rikke Hansen | 21–12, 12–21, 9–21 | Runner-up |
| 2010 | Iceland International | Mette Poulsen | Kasper Paulsen Josephine van Zaane | 21–17, 8–21, 21–16 | Winner |