The regular season began on September 26, 2003, and concluded on March 28, 2004,[1] with the regular season champion winning the Anderson Cup.
The 2003–04 season was the first for the Danville Wings after transferring from the North American Hockey League and the only season for the St. Louis Heartland Eagles after moving from Topeka, Kansas.
At the conclusion of the season, St. Louis voluntarily suspended operations and officially folded a year later.
The Clark Cup playoffs features the top four teams from each division competing for the league title.
Final standings[2] Note: GP = Games played; W = Wins; L = Losses; OTL = Overtime losses; SL = Shootout losses; GF = Goals for; GA = Goals against; PTS = Points; x = clinched playoff berth; y = clinched division title; z = clinched league title [3] [4] [5]