Career
Mamelund plays professionally in the German Bundesliga. Former clubs are Helset IF and Haslum Hong Kong. Mamelund has signed a transfer to the Danish Handball League side FCK Håndbold, which will be his club from July 2009. On 19 August 2015 it was announced that Erlend Mamelund would join German side THW Kiel immediately on a four-year deal.
Mamelund made his debut on the Norwegian national handball team in 2005.