Christine Marie "Chris" Evert (born 21 December 1954) is a umwhile Warld No. 1 profeesional tennis player frae the Unitit States. She wan 18 Grand Slam singles championships, includin a record seiven championships at the French Open an a record sax championships at the U.S. Open. She wis the year-endin Warld No. 1 singles player in 1974, 1975, 1976, 1977, 1978, 1980, an 1981.
Evert's career winnin percentage in singles matches o 90.05% (1309–145) is the best in the history o profeesional tennis, man or wumman. On clay courts her career winnin percentage in singles matches o 94.05% (316–20) remains a WTA record. In tennis writer Steve Flink's book The Greatest Tennis Matches of the Twentieth Century, he namit Evert as the third best female player o the 20t century, efter Steffi Graf an Martina Navratilova. Evert reached 34 Grand Slam singles feenals, mair than ony player, man or wumman, in the history o profeesional tennis. She reached the semifeenals or better, in singles, o 52 o the 56 Grand Slams she played, includin the semifeenals or better o 34 consecutive Grand Slams played frae the 1971 U.S. Open through the 1983 French Open. Evert niver lost in the first or seicont roond o a Grand Slam singles tournament. She wan 157 singles championships. In weemen's doubles, Evert wan three Grand Slam titles an 29 regular tour championships.