Le Mat Trophy
Loob began with third division clubs IK Graip Slite and Roma IF Romakloster in 1975–76 and 1976–77 respectively before spending two seasons with second division club Karlskrona IK. He moved up to the Elitserien when he joined Färjestad BK, with whom he scored 15 goals and 19 points in 36 games in 1979–80. He scored 23 goals the following season as Färjestad won its first Le Mat Trophy as Elitserien champion. In 1982–83, Loob set Elitserien records by scoring 42 goals and 76 points. He continues to hold those records today.