The tennis players Björn Borg and Jimmy Connors met 23 times during their careers according to the ATP website, and 42 times including invitational and exhibition tournaments.
In 1975 Connors met Borg in the semifinals of the U.S. Open and defeated him in straight sets, on clay. Connors defeated Borg again at the U.S. Open again in 1976, this time in a four-set final, capturing his second U.S. Open title. In 1977 they met in the Wimbledon final, and Borg won in five sets. Borg defeated Connors at Wimbledon again in the 1978 final, this time in straight sets, to claim his third straight Wimbledon title. Two months later, Connors defeated Borg at the U.S. Open in a straight-set final on a hard surface "DecoTurf II", ending Borg's 43-match winning streak. In 1979 they met at Wimbledon again, and Borg won a straight-set semifinal. In 1981 Borg, defeated Connors in a five-set semifinal at Wimbledon and a straight-set semifinal at the U.S. Open, his tenth consecutive win against Connors. Soon afterwards Borg retired from the regular tour. They faced each other three times at the season-ending Masters Championship in New York City: in January 1978 (ending the 1977 season), January 1980 (ending the 1979 season) and January 1981 (ending the 1980 season). Connors won the first meeting, Borg the latter two.
Borg leads 15–8 in their official head-to-head, 8–5 in finals, 5–3 in Grand Slam meetings and they are 2–2 in Grand Slam finals. They also met many times in unofficial invitational and exhibition tournaments with Connors leading 7–3 and 8–1 respectively in those matches.