In addition to her Grand Slam victories, Tracy Austin won which end-of-year championships in singles?
WTA Tour Championships
Fed Cup
ATP Finals
Porsche Tennis Grand Prix
Answer
Tracy Austin won the WTA Tour Championships in singles in addition to her Grand Slam victories. The WTA Tour Championships is an annual women's tennis tournament held at the end of the season. It is the most prestigious women's tennis tournament after the four Grand Slam tournaments. Austin won the WTA Tour Championships in 1979 and 1981.
Mastering the Court: Test Your Knowledge on Tracy Austin, the Legendary American Tennis Sensation