Björn Rune Borg (Swedish pronunciation: [bjœːɳ bɔrj] ( listen); born 6 June 1956) is a former World No. 1 tennis player from Sweden. Between 1974 and 1981 he won 11 Grand Slam singles titles. He won five consecutive Wimbledon singles titles and six French Open singles titles (second only to Rafael Nadal). He is considered by many to be one of the greatest tennis players of all time.
During his relatively brief pro career, Borg won 41% of the Grand Slam singles tournaments he entered (11 of 27) and 89.81% (141–16) of the Grand Slam singles matches he played. His winning rate across all surfaces (carpet, clay, hard, and grass) was 82.72% (608–127), and his winning percentage at Wimbledon was 92.73% (51–4); all are records. He is one of four players in the open era to win both Wimbledon and the French Open in the same year and the only player to do so for three consecutive years. He is the only player to win three majors without dropping a set. He was the first male player to win more than 10 majors during the Open era (since surpassed by Pete Sampras’s 14, Roger Federer’s 17, and Rafael Nadal’s 13 titles). He also won three year-end championship titles, including two Masters Grand Prix titles and one WCT Final title. In addition, he won 15 Championship Series titles (1974–1980) the precursors to the current Masters 1000.
Borg was the first player to earn more than one million dollars in prize money in a single season, in 1979.