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The 1975 Majestic International, also known as the Denver Women's Open, was a women's tennis tournament played on indoor carpet courts at the Denver Auditorium Arena in Denver, Colorado in the United States. The event was part of the USTA–WTA Summer/Fall Circuit of the 1975 WTA Tour. It was the fourth edition of the tournament and was held from September 22 through September 28, 1975. First-seeded Martina Navratilova won the singles title and earned $10,000 first-prize money.