2000 Summer Olympics

Hansen made his debut at the Olympic Games in 2000 Sydney, competed in the men's doubles event partnered with Lars Paaske. He and Paaske beat the Bulgarian pair Mikhail Popov/Svetoslav Stojanov in the first round, but was defeated by Ricky Subagja/Rexy Mainaky of Indonesia in the second round.

2004 Summer Olympics

Hansen competed in badminton at the 2004 Summer Olympics in the men's doubles with partner Jens Eriksen. They had a bye in the first round and defeated Howard Bach/Kevin Han of the United States in the second. In the quarterfinals, Hansen and Eriksen beat the second seeded from China Cai Yun/Fu Haifeng 3–15, 15–11, 15–8. They lost the semifinal to Lee Dong-soo/Yoo Yong-sung of Korea 15–9, 5–15, 3–15 and the bronze medal match against Eng Hian/Flandy Limpele of Indonesia 13–15, 7-15 to finish fourth place.

2008 Summer Olympics

Hansen again qualified to compete at the Olympic Games for three consecutive times, and was partnered with Jens Eriksen. The duo were defeated in the early stage by the second seeded Cai Yun/Fu Haifeng with the score 12–21, 11–21.

World Championships

Men's doubles

Year	Venue	Partner	Opponent	Score	Result
2006	Palacio de Deportes de la Comunidad, Madrid, Spain	Jens Eriksen	Cai Yun Fu Haifeng	21–23, 16–21	Bronze

World Cup

Men's doubles

Year	Venue	Partner	Opponent	Score	Result
2005	Olympic Park, Yiyang, China	Jens Eriksen	Cai Yun Fu Haifeng	14–21, 12–21	Bronze

European Championships

Men's doubles

Year	Venue	Partner	Opponent	Score	Result
2008	Messecenter, Herning, Denmark	Jens Eriksen	Lars Paaske Jonas Rasmussen	19–21, 16–21	Silver
2006	Maaspoort Sports and Events, Den Bosch, Netherlands	Jens Eriksen	Mathias Boe Carsten Mogensen	21–15, 21–17	Gold
2004	Queue d’Arve Sport Center, Geneva, Switzerland	Jens Eriksen	Anthony Clark Nathan Robertson	15–3, 15–9	Gold
2002	Baltiska hallen, Malmö, Sweden	Jens Eriksen	Anthony Clark Nathan Robertson	7–4, 1–7, 7–3, 2–7, 7–3	Gold

European Junior Championships

Boys' doubles

Year	Venue	Partner	Opponent	Score	Result
1991	Budapest, Hungary	Peter Christensen	Vladislav Druzchenko Valeriy Strelcov	15–7, 15–10	Gold

BWF Superseries

The BWF Superseries, launched on 14 December 2006 and implemented in 2007,^[2] is a series of elite badminton tournaments, sanctioned by Badminton World Federation (BWF). BWF Superseries has two level such as Superseries and Superseries Premier. A season of Superseries features twelve tournaments around the world, which introduced since 2011,^[3] with successful players invited to the Superseries Finals held at the year end.

Men's doubles

Year	Tournament	Partner	Opponent	Score	Result
2007	Denmark Open	Jens Eriksen	Koo Kien Keat Tan Boon Heong	21–14, 14–21, 12–21	Runner-up
2007	Swiss Open	Jens Eriksen	Koo Kien Keat Tan Boon Heong	21–17, 16–21, 12–21	Runner-up

IBF World Grand Prix

The World Badminton Grand Prix sanctioned by International Badminton Federation (IBF) since 1983.

Men's doubles

Year	Tournament	Partner	Opponent	Score	Result
2006	China Masters	Jens Eriksen	Cai Yun Fu Haifeng	21–17, 21–17	Winner
2006	All England Open	Jens Eriksen	Choong Tan Fook Lee Wan Wah	15–6, 14–17, 15–2	Winner
2005	China Open	Jens Eriksen	Sigit Budiarto Candra Wijaya	16–17, 15–11, 13–15	Runner-up
2005	Hong Kong Open	Jens Eriksen	Cai Yun Fu Haifeng	13–15, 9–15	Runner-up
2005	Japan Open	Jens Eriksen	Sigit Budiarto Candra Wijaya	15–10, 15–3	Winner
2005	German Open	Jens Eriksen	Cai Yun Fu Haifeng	15–6, 3–15, 10–15	Runner-up
2005	Korea Open	Jens Eriksen	Sigit Budiarto Candra Wijaya	7–15, 15–13, 15–13	Winner
2004	Singapore Open	Jens Eriksen	Alvent Yulianto Luluk Hadiyanto	2–15, 9–15	Runner-up
2004	All England Open	Jens Eriksen	Choong Tan Fook Lee Wan Wah	9–15, 15–13, 15–3	Winner
2003	Singapore Open	Jens Eriksen	Lars Paaske Jonas Rasmussen	15–9, 15–10	Winner
2002	Dutch Open	Jens Eriksen	Kim Dong-moon Ha Tae-kwon	8–15, 8–15	Runner-up
2002	Swiss Open	Jens Eriksen	Lee Dong-soo Yoo Yong-sung	7–5, 5–7, 2–7, 5–7	Runner-up
2001	Denmark Open	Lars Paaske	Jim Laugesen Michael Søgaard	7–5, 3–7, 6–8, 7–3, 7–1	Winner
2001	Dutch Open	Lars Paaske	Jesper Christensen Jesper Larsen	4–7, 7–3, 5–7, 7–4, 5–7	Runner-up
2001	Japan Open	Lars Paaske	Sigit Budiarto Candra Wijaya	7–15, 11–15	Runner-up
1999	Denmark Open	Lars Paaske	Jim Laugesen Michael Søgaard	15–13, 15–10	Winner
1999	Dutch Open	Lars Paaske	Choong Tan Fook Lee Wan Wah	4–15, 15–6, 9–15	Runner-up

Mixed doubles

Year	Tournament	Partner	Opponent	Score	Result
1999	Dutch Open	Pernille Harder	Chen Qiqiu Chen Lin	11–15, 15–9, 10–15	Runner-up

IBF International

Men's singles

Year	Tournament	Opponent	Score	Result
1995	Amor International	Peter Rasmussen	7–15, 9–15	Runner-up
1995	Portugal International	Henrik Sørensen	15–7, 15–9	Winner
1994	Hungarian International	Robert Nock	15–13, 15–11	Winner
1994	Portugal International	Jan Jørgensen	15–6, 15–8	Winner

Men's doubles

Year	Tournament	Partner	Opponent	Score	Result
1998	Scottish International	Michael Lamp	Anthony Clark Ian Sullivan	15–10, 15–5	Winner
1998	Norwegian International	Michael Lamp	Jesper Mikla Lars Paaske	9–15, 5–15	Runner-up
1997	BMW Open	Janek Roos	Dharma Gunawi Yoseph Phoa	15–9, 15–10	Winner
1995	Portugal International	Henrik Sørensen	Jan Jørgensen Peder Nissen	15–7, 15–4	Winner
1992	Norwegian International	Michael Søgaard	Rikard Ronnblom Erik Soderberg	15–6, 15–7	Winner
1991	Norwegian International	Christian Jakobsen	Jan-Eric Antonsson Stellan Österberg	6–15, 5–15	Runner-up
1990	Amor International	Michael Bisgaard	Claus Simonsen Morten Sandal		Runner-up

Mixed doubles

Year	Tournament	Partner	Opponent	Score	Result
1994	Portugal International	Rikke Olsen	Thomas Damgaard Helene Kirkegaard	15–12, 15–7	Winner
1991	Amor International	Rikke Broen	Alex Meijer Nicole van Hooren	9–15, 11–15	Runner-up