In 1969, at the age of 20, Gallacher became the youngest man to represent Great Britain in the Ryder Cup up to that time. This record was subsequently beaten by Nick Faldo and others. He went on to play in the Ryder Cup eight times and was non-playing captain of the European Team in 1991, 1993 and 1995. All three of those matches were very close; Europe lost the first two but won the third.