What is Billie Jean King's greatest achievement?

Trophies on one side, a union and a lawsuit on the other. The hardest part is deciding whether the tennis or the paperwork mattered more.

1. 1
   Beating Bobby Riggs

   The 1973 Battle of the Sexes, won in straight sets in front of about 50 million American viewers.
   1000pts
2. 2
   Congressional Gold Medal

   Awarded in 2024, an honour Congress has given fewer than 200 times in its history.
   808pts
3. 3
   Founding the WTA

   In 1973 she and eight other players created the women's tour that still runs the sport.
   636pts
4. 4
   Thirty-nine majors in total

   Twelve in singles, sixteen in women's doubles and eleven in mixed, across nine seasons of peak form.
   621pts
5. 5
   Twenty Wimbledon titles

   Six singles, ten doubles and four mixed, a Wimbledon record she shares with Martina Navratilova.
   538pts
6. 6
   Presidential Medal of Freedom

   Awarded in 2009, the first female athlete to receive the country's highest civilian honour.
   538pts
7. 7
   The $1 contracts

   The 1970 Houston boycott, signed for a dollar each, that began the women's professional circuit.
   323pts
8. 8
   Carrying on after 1981

   Outed by a lawsuit, she lost every endorsement inside a day and kept playing and organising anyway.
   323pts
9. 9
   The tennis center's name

   The USTA's home in Flushing Meadows was named after her in 2006, the first major sports venue named for a woman.
   323pts
10. 10
    Twelve singles majors

    A dozen Grand Slam singles titles between 1966 and 1975, taken from every surface then in use.
    179pts
11. 11
    Equal prize money in 1973

    Her campaign made the US Open the first major to pay its men's and women's champions the same.
    179pts