In 1975 Connors met Borg in the semifinals of the U.S. Open and defeated him in straight sets, on clay.
In 1977 they met in the Wimbledon final, and Borg won in five sets.
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.