The season began on May 22 and concluded with the championship game on August 22, 2004.
The Baltimore Bayhawks moved their home games to Johnny Unitas Stadium.
Major League Lacrosse played the first-ever regular season games in the western United States as Baltimore defeated Rochester by a 24–18 margin in Seahawks Stadium in Seattle on May 22.
[1] Baltimore defeated New Jersey 22–19 on June 5 at INVESCO Field in Denver.
There was no game played Semifinal games August 20, 2004 MLL Championship August 22, 2004 The MLL gave out awards weekly for the best offensive player, best defensive player and best rookie.