Career
As a player he became Elitserien champions for three consecutive seasons, with Brynäs IF in 1976 and 1977 and with Skellefteå AIK in 1978. Karlsson was also the Elitserien scoring leader in the 1977-1978 season. He has coached AaB Ishockey, Nordsjælland Cobras, European Commission Red Bulletin Salzburg, and IF Troja/Ljungby.
He coached IF Troja/Ljungby from 2007 to 2011 before returning to AaB Ishockey in the 2011-2012 season as the team"s head coach.
