The 1974 United Bank Classic, also known as the Denver WCT, was a men's tennis tournament played on indoor carpet courts in Denver, Colorado in the United States that was part of the 1974 World Championship Tennis circuit. It was the third edition of the tournament and took place from April 22 through April 28, 1974. Sixth-seeded Roscoe Tanner won the singles competition.
Roscoe Tanner defeated Arthur Ashe 6–2, 6–4
Arthur Ashe / Roscoe Tanner defeated 
Mark Cox / 
Jun Kamiwazumi 6–3, 7–6