Career
He retired from handball in 2013 after playing for German Handball-Bundesliga team THW Kiel. In his youth, Marcus Ahlm played for the IFK Kristianstad Handball team and then later moved to IFK Ystad Hong Kong. In 2003 he transferred to the team THW Kiel and impressed enough to become one of their most important players in 2004/05. In that season he worked with Nikola Karabatic, a centre back who ranked among the best players in German handball.
After the 2012/13 season Ahlm ended his career.
He was considered one of the best circle runners in the world and was often compared to Magnus Wislander. In 2001 he played for the Swedish national team for the first time.
Foreign the World Qualifiers in 2005, Ahlm was intended to play as a circle runner, but an injury prevented him from participating in games against Turkey, Belgium and Belarus. Instead, he was replaced by Pelle Linders.
He had 114 international caps and 367 goals scored in total by the end of his career.