Rasmussen had worked as a youth coach at KB for 20 years, when he became assistant manager at Odense Boldklub in January 2002.
[1] In January 2004, he became joint manager of the club together with Troels Bech.
[2] He later managed BK Avarta,[3] Ølstykke FC,[4] the women’s team of Brøndby IF,[5] and Næstved Boldklub.
[6] On 28 June 2012, he was named new manager of Hobro IK.
[8] In November 2016, he was announced as the new head coach of the Ghanaian football club West African Football Academy.