The 1980 Australian Open was a tennis tournament played on outdoor grass courts at the Kooyong Lawn Tennis Club in Melbourne, Australia. It was the 69th edition of the Australian Open. The women's tournament was held 24–30 November 1980 and the men's was held from 26 December 1980 through 4 January 1981. The singles titles were won by American Brian Teacher and Czechoslovakian Hana Mandlíková.
Yvonne Vermaak is a former tour tennis player who represented her native South Africa.
The 1983 Virginia Slims of Boston was a women's tennis tournament played onindoor carpet courts at the Walter Brown Arena in Boston, Massachusetts in the United States that was part of the 1983 Virginia Slims World Championship Series. The tournament was held from March 14 through March 20, 1983. Wendy Turnbull won the singles title and earned $30,000 first-prize money as well as 200 Virginia Slims Series points.
The 1980 Player's International Canadian Open was a tennis tournament played on outdoor hard courts at the National Tennis Centre in Toronto in Canada that was part of the 1980 Volvo Grand Prix and of the 1980 WTA Tour. The tournament was held from August 11 through August 17, 1980.
Rosemary Casals and Wendy Turnbull were the defending champions but lost in the quarterfinals to Mima Jaušovec and Kathy Jordan.
The 1975 Japan Open Tennis Championships was a combined men's and women's tennis tournament played on hard courts. The men's events were part of the 1975 Commercial Union Assurance Grand Prix and took place at the Denen Coliseum in Tokyo, Japan. The tournament was held from 2 November through 8 November 1975. Raúl Ramírez and Kazuko Sawamatsu won the singles titles.
Billie Jean King was the defending champion and she won in the final 6–3, 7–5 against Alycia Moulton. It was King's last singles tournament title of her career and she became the oldest WTA player to win a singles tournament at 39 years, 7 months and 23 days.
The 1983 New South Wales Open was a combined men's and women's tennis tournament played on outdoor grass courts at the White City Stadium in Sydney, Australia. The men's tournament, named ANZ Bank NSW Open, was part of the 1983 Volvo Grand Prix and held from 12 December until 18 December 1983. The women's tournament, known as the NSW Building Society Open, was part of the 1983 Virginia Slims World Championship Series and was played from 21 November through 27 November 1983. It was the 92nd edition of the tournament. Third-seeded Jo Durie won the women's singles title, the first British female player to do so since Dorothy Round in 1934.
The 1983 Virginia Slims of Utah, also known as the Ginny of Utah, was a women's tennis tournament played on outdoor hard courts at the Canyon Racquet Club in Salt Lake City, Utah, in the United States that was part of the Ginny Tournament Circuit of the 1983 Virginia Slims World Championship Series. It was the second edition of the tournament and was held from September 12 to 17, 1983. First-seeded Yvonne Vermaak won the singles title and earned $7,000 first-prize money.
The 1983 Virginia Slims 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 1983 Virginia Slims World Championship Series. The tournament was held from October 3 through October 9, 1983. Eighth-seeded Virginia Ruzici won the singles title and earned $28,000 first-prize money.
The 1983 Daihatsu Challenge was a women's tennis tournament played on indoor carpet courts at the Brighton Centre in Brighton, England that was part of the 1983 Virginia Slims World Championship Series. It was the sixth edition of the tournament and was held from 17 October until 23 October 1983. First-seeded Chris Evert-Lloyd won the singles title and earned $28,000 first-prize money.
The 1984 Eastbourne International was a women's tennis tournament played on outdoor grass courts at Devonshire Park in Eastbourne, United Kingdom that was part of the 1984 Virginia Slims World Championship Series. The tournament was held from 18 June until 24 June 1984. First-seeded Martina Navratilova won the singles title.
The 1984 Virginia Slims of Indianapolis, also known as the Ginny of Indianapolis, was a women's tennis tournament played on indoor carpet courts at the Indianapolis Racquet Club in Indianapolis in the United States that was part of the Ginny Tournament Circuit of the 1984 Virginia Slims World Championship Series. The tournament was held from January 30 through February 5, 1984. JoAnne Russell won the singles title.
The 1984 Virginia Slims of Utah was a women's tennis tournament played on outdoor hard courts in Salt Lake City, Utah in the United States that was part of the 1984 Virginia Slims World Championship Series. The tournament was held from September 10 through September 16, 1984. Third-seeded Yvonne Vermaak won the singles title.
The 1984 Bridgestone Doubles Championships was a tennis tournament played on indoor carpet courts in Tokyo, Japan that was part of the 1984 Virginia Slims World Championship Series. The tournament was held from March 5 through March 11, 1984.
The 1984 Miami Classic was a tennis tournament played on outdoor clay courts in Miami, Florida in the United States that was part of the 1984 Virginia Slims World Championship Series. The tournament was held from April 2 through April 8, 1984. First-seeded Laura Arraya won the singles title.
The 1984 United Jersey Bank Classic was a women's tennis tournament played on outdoor hard courts in Mahwah, New Jersey in the [United States that was part of the 1984 Virginia Slims World Championship Series. The tournament was held from August 13 through August 19, 1984. First-seeded Martina Navratilova won the singles title.
The 1978 Keith Prowse International, also known as the Chichester International, was a women's tennis tournament played on outdoor grass courts at Oaklands Park in Chichester in England. The event was part of the A category of the 1978 Colgate Series. It was the eighth edition of the tournament and was held from 12 June through 16 June 1978. First-seeded Evonne Goolagong Cawley won the singles title and earned $6,000 first-prize money.
The 1982 Florida Federal Open was a women's tennis tournament played on outdoor hard courts at the East Lake Woodlands Racquet Club in Tampa, Florida in the United States that was part of the Toyota Series circuit of the 1982 WTA Tour. It was the 10th edition of the tournament and was held from October 11 through October 17, 1982. The final was watched by a crowd of 6,150 spectators who saw first-seeded Chris Evert-Lloyd win the singles title and earn $22,000 first-prize money.
The 1981 Central Fidelity Banks International was a women's singles tennis tournament played on indoor carpet courts at the Robins Center in Richmond, Virginia in the United States. The event was part of the Category 3 tier of the Toyota Series that was part of the 1981 WTA Tour. It was the third edition of the tournament and was held from August 10 through August 16, 1981. Seventh-seeded Mary-Lou Piatek won the singles title and earned $18,000 first-prize money.
Yvonne Vermaak 
Kathy Jordan / 
