[3] With a capacity of 12,500, the building was at the time of its opening the second largest in America to Madison Square Garden.
The Auditorium Arena was an annual host of the Colorado high school state basketball tournament, primarily for the smaller-enrollment classifications.
The Auditorium Arena was home to the Denver Comets of the professional International Volleyball Association from 1977 to 1979, and home to the Denver Racquets of World Team Tennis in 1974, when they won the league championship before moving to Phoenix for the 1975 season.
On December 26, 1968, the rock group Led Zeppelin played their first concert in the United States at the Auditorium Arena.
[5] In the last several years of its existence, the building was a popular venue for professional wrestling, hosting both AWA and WWF events.