The Fever joined National Indoor Football League (NIFL) in 2005 as an expansion team.

The Fever earned a berth in Indoor Bowl V on July 30, 2005, where they defeated the Rome Renegades 47–31 in Kennewick.

On September 4, it was confirmed that they were moving to United Indoor Football, along with the Billings Outlaws and River City Rage.

[6] The league was expected to make an official announcement at a press conference sometime on the weekend of September 11, and was also hoping to add the Rapid City Flying Aces and Wyoming Cavalry soon.

[7] The new ownership had introduced a new logo, with team colors and uniforms that were reminiscent of the Miami Dolphins on December 13, 2006 (left), but because of general fan dislike, the team announced on January 9, 2007, that they would be switching back to their old color scheme and logo.

[9] Later that month, it was announced that the af2 was shutting down and the new Arena Football 1 (AF1) was taking its place, including the Fever as a charter team.

Running backs Wide receivers Defensive linemen Defensive backs Kickers Refused to report Transfer list The following is a list of all Fever players who have won league Awards The following Fever players have been named to All-IFL Teams: Assistant coaches Craig Beverlin was the initial head coach for the Fever, but after a 0–2 start, Beverlin was fired, and the details of his dismissal were never shared publicly.