The 1980 Avon Championships of Detroit was a women's tennis tournament played on indoor carpet courts at the Cobo Hall & Arena in Detroit, Michigan in the United States that was part of the 1980 Avon Championships circuit. It was the ninth edition of the tournament and was held from February 18 through February 24, 1980. Second-seeded Billie Jean King won the singles title and earned $35,000 first-prize money.
Billie Jean King defeated Evonne Goolagong Cawley 6âÂÂ3, 6âÂÂ0
Billie Jean King / Ilana Kloss defeated Kathy Jordan / Anne Smith 3âÂÂ6, 6âÂÂ3, 6âÂÂ2