Stanislav Birner's wife and partner in the 1980 French Open  Mixed Doubles and one of the double player that defeated Lindsay Davenport and Natasha Zvereva in the 1999 WTA Tour Championships  Doubles are former professional athletes. They both were professional tennis players.
Renta Tomanov (born 9 December 1954) is a former professional tennis player from Czechoslovakia. 
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 Billy Martin and Anne Smith won the title, defeating Stanislav Birner and Renta Tomanov in the final. 
 They were eliminated in the semifinals by Larisa Neiland and Arantxa Snchez Vicario. 
