The 1990 season is the 4th season of the league that began on January 5, 1990, and concluded with the championship game on April 13.
The Pittsburgh Bulls made their MILL debut in 1990, while the Washington Wave ceased operations.
Reference: [1] 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 PlayedW: Wins; L: Losses; GB: Games back; PCT: Win percentage; Home: Record at Home; Road: Record on the Road; GF: Goals scored; GA: Goals allowedDifferential: Difference between goals scored and allowed; GF/GP: Average number of goals scored per game; GA/GP: Average number of goals allowed per game First Team: Second Team: Bold numbers indicate new single-season records.
Italics indicate tied single-season records.
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