1980 Avon Championships of Detroit
| 1980 Avon Championships of Detroit | |
|---|---|
| Date | February 18–24 |
| Edition | 9th |
| Category | Virginia Slims circuit |
| Draw | 64S/16D |
| Prize money | $200,000 |
| Surface | Carpet (Sporteze) / indoor |
| Location | Detroit, USA |
| Venue | Cobo Hall & Arena |
| Champions | |
| Singles | |
 Billie Jean King
|
|
| Doubles | |
Billie Jean King /  Ilana Kloss
|
|
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 6–3, 6–0
Billie Jean King / Ilana Kloss defeated Kathy Jordan / Anne Smith 3–6, 6–3, 6–2
...
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