The 1979 U.S. Clay Court Championships was a men's Grand Prix and women's Colgate Seriestennis tournament. The event was held for the first time at the newly built Indianapolis Sports Center in Indianapolis in the United States and played on outdoor clay courts. It was the 11th edition of the tournament in the Open Era and was held in from August 6 through August 12, 1979. First-seeded Jimmy Connors won the men's singles title and the $25,000 first-prize money.[3][4] First-seeded Chris Evert-Lloyd claimed the women's singles title and $20,000 first-prize money.[5]