Premise: Martina Navratilova . She and Billie Jean King each won 20 Wimbledon titles , an all-time record . She and Serena Williams are the only Open Era players to have won six major singles crowns without the loss of a set . Navratilova reached 11 consecutive major singles finals , second all-time to Steffi Graf 's 13 , and is the only woman ever to reach 19 consecutive major semi-finals . She was ranked in the world 's top 10 in singles for a record 20 consecutive years ( 1975 -- 1994 ) , a span which included 19 years in the top 5 , 15 years in the top 3 , and 7 years as the world No. 1 ranked singles player . She is one of only five tennis players all-time to win a multiple slam set in two disciplines , matching Margaret Court , Roy Emerson , Frank Sedgman and Serena Williams .
Hypothesis: Martina Navratilova is a person.
Label: ENTAILMENT