The 2006 Lacrosse Season saw Portland LumberJax clinch the West division with a record of 11-5, with Colorado Mammoth and Calgary Roughnecks finishing 2nd and 3rd respectively with records 10-6 and 9-7.
West Division 1 Portland LumberJax  xy 11 5 Colorado Mammoth  x 2 10 6 Calgary Roughnecks  x 3 9 7 x: Clinched playoff berth; c: Clinched playoff berth by crossing over to another division; y: Clinched division; z: Clinched best regular season record; GP: Games Played W: Wins; L: Losses; GB: Games back; PCT: Win percentage; Home: Record at Home; Road: Record on the Road; GF: Goals scored; GA: Goals allowed Differential: Difference between goals scored and allowed; GF/GP: Average number of goals scored per game; GA/GP: Average number of goals allowed per game Toronto won the 3-way tiebreaker with Minnesota and Philadelphia 
