Dahm did not secure a contract before the start of the 2010-11 season and waited until the start of December to sign a short-term contract with his childhood team Rødovre Mighty Bulls. Rødovre needed instant cover as one of their goalies was injured and another was away with the Denmark men's national junior ice hockey team for the 2011 World Junior Ice Hockey Championships Division I in Slovenia. While his stay with Rødovre was successful, the two sides could not agree on an extension of the contract and after only two games with Rødovre, Dahm was snapped up by EfB Ishockey, another Danish League team.