They are an expansion team that are current members of the National Arena League.

On August 31, 2023, the National Arena League announced the addition of the Spartans as an expansion team.

They previously played in Loveland following the Colorado Crush of the Indoor Football League.

[1] On October 2, 2024, the Spartans announced their move to Denver and the Denver Coliseum for the 2025 National Arena League season.

[2] Running backs Wide receivers Defensive linemen Linebackers Defensive backs Special teams