The WTA Tour Championships is a tennis tournament played annually at the end of the season for the top-ranked players on the Women's Tennis Association (WTA) tour. The month, city and number of players has changed since the first edition in 1972. Since 2003 there has been eight singles players divided into two groups, and four doubles teams.
The WTA Tour Championships is generally considered to be the fifth most prestigious event on the women's tour after the four Grand Slam tournaments. It also has the largest prize money and ranking points after the Grand Slams.
The most successful player by far has been Martina Navratilova with 8 singles titles and 12 in doubles.