Ultimate Indoor Football League

The Ultimate Indoor Football League (UIFL) was a regional professional indoor football league that began its inaugural season on February 18, 2011 as the Ultimate Indoor Football League before playing as the United Indoor Football League in 2012, then switched back to "Ultimate" for the 2013 season. After the 2014 season, the league merged with X-League Indoor Football.

Ultimate Indoor Football League

The Ultimate Indoor Football League (UIFL) was a regional professional indoor football league that began its inaugural season on February 18, 2011 as the Ultimate Indoor Football League before playing as the United Indoor Football League in 2012, then switched back to "Ultimate" for the 2013 season. After the 2014 season, the league merged with X-League Indoor Football.