Christine Marie Evert, known as Chris Evert Lloyd from 1979 to 1987, is a retired American world No. 1 tennis player. She won 18 Grand Slam singles championships and three doubles titles. She was the year-ending world No. 1 singles player in 1974, 1975, 1976, 1977, 1978, 1980, and 1981. Overall, Evert won 157 singles championships and 32 doubles titles.