The 1979 Player's International Canadian Open was a combined men's end women's professional tennis tournament played on outdoor hard courts at the National Tennis Centre in Toronto in Canada that was part of the 1979 Colgate-Palmolive Grand Prix and of the 1979 WTA Tour. It was the 90th edition of the tournament and was held from August 13 through August 19, 1979. Björn Borg and Laura DuPont won the singles titles.
Björn Borg defeated John McEnroe 6âÂÂ3, 6âÂÂ3
Laura DuPont defeated Brigitte Cuypers 6âÂÂ4, 6âÂÂ7, 6âÂÂ1
Peter Fleming / John McEnroe defeated Heinz Günthardt / Bob Hewitt 6âÂÂ7, 7âÂÂ6, 6âÂÂ1
Lea Antonoplis / Diane Evers defeated Chris O'Neil / Mimmi Wikstedt 2âÂÂ6, 6âÂÂ1, 6âÂÂ3