Arizona Rattlers (1)
2017 United Bowl

Sioux Falls Storm (6)
The Indoor Football League was formed in 2009 with the merger of the United Indoor Football (UIF) and Intense Football League (IFL) after the winners of both leagues took part in the National Indoor Bowl in which 4 times UIF champion Sioux Falls Storm beat the IFL champion Louisiana Swashbucklers 54-42.
It plays indoor football which is a variation of American Football that is played in arenas. All teams play 16 games and receive 2 bye weeks followed by the playoffs and ending with the United Bowl in July.
2018 Season
The most successful IFL team Sioux Falls Storm had intended on joining the CIF but decided to return to the IFL. Wichita Falls Nighthawks had intended on joining the Champions Indoor Football league but were threatened with a law suit and have suspended operations. Both Bloomington Edge, returning to the IFL, and West Michigan Ironmen have joined from the CIF. Since the 2017 season, Colorado Crush and Spokane Empire have ceased operations with Salt Lake Screaming Eagles forming the new Electronic Football League (eFL).
Updated: 14 November 2017