|Born||28 October 1977|
|Height||1.84 m (6 ft 0 in)|
|Weight||75 kg (165 lb; 11.8 st)|
|Men's & mixed doubles|
With his men's doubles partner Lars Paaske he won the 2003 IBF World Championships defeating Indonesian pair Candra Wijaya and Sigit Budiarto in the gold medal match and the All England Super Series 2010 defeating compatriots Mathias Boe and Carsten Mogensen. Rasmussen also competed in badminton at the 2004 Summer Olympics in men's doubles with Paaske. They had a bye in the first round, then were defeated in the round of 16 by Yim Bang-eun and Kim Yong-hyun of Korea.
He also competed in mixed doubles with partner Rikke Olsen. They had a bye in the first round and defeated Daniel Shirley and Sara Petersen of New Zealand in the second. In the quarterfinals, Rasmussen and Olsen beat Kim Dong-moon and Ra Kyung-min of Korea 17–14, 15–8 to advance to the semifinals. There, they lost to Nathan Robertson and Gail Emms of Great Britain 15–6, 15–12. In the bronze medal match, they were defeated by fellow Danish pair Jens Eriksen and Mette Schjoldager 15–5, 15–5 to finish fourth place.
He won the gold medal at the 2008 European Badminton Championships in men's doubles with Lars Paaske. With the retirement of Lars Paaske after the 2010 BWF World Championships in Paris, He is now pairing with another Danish player, Mads Conrad-Petersen.
|2003||National Indoor Arena, Birmingham, England||Lars Paaske|| Candra Wijaya
|15–7, 13–15, 15–13||Gold|
|2006||Palacio de Deportes de la Comunidad de Madrid,||Lars Paaske|| Robert Blair
|21–23, 21–17, 17–21||Bronze|
IBF World Grand PrixEdit
The World Badminton Grand Prix sanctioned by International Badminton Federation (IBF) from 1983 to 2006.
|2000||German Open||Michael Lamp|| Jim Laugesen
|17–16, 10–15, 7–15||Runner-up|
|2001||German Open||Michael Lamp|| Jim Laugesen
|1–7, 1–7, 7–3, 4–7||Runner-up|
|2002||German Open||Lars Paaske|| Jim Laugesen
|10–15, 15–9, 15–6||Winner|
|2003||Singapore Open||Lars Paaske|| Jens Eriksen
Martin Lundgaard Hansen
|2003||China Open||Lars Paaske|| Choong Tan Fook
Lee Wan Wah
|2004||Denmark Open||Lars Paaske|| Markis Kido
|2005||All England Open||Lars Paaske|| Fu Haifeng
|2005||Thailand Open||Lars Paaske|| Jung Jae-sung
|2005||Denmark Open||Lars Paaske|| Chan Chong Ming
Koo Kien Keat
|2006||Denmark Open||Lars Paaske|| Mathias Boe
Joachim Fischer Nielsen
|18–21, 21–10, 21–17||Winner|
- "2008 European Championships winners". tournamentsoftware.com. Archived from the original on 2018-09-30. Retrieved 2008-04-21.
- Sachetat, Raphael. "NEW PAIRING – Mads Conrad-Petersen and Jonas Rasmussen". Badzine. Retrieved 18 May 2020.