Career
Coles played professionally between 1970 and 1988, playing both singles and doubles. Her best singles results in a Grand Slam tournament were at Wimbledon, where she advanced to the round of 16 in 1973 and 1975, losing both times to Margaret Court. As a doubles player, she reached the quarterfinals of many Grand Slam contests, most notably in 1975, when she and Sue Barker made the quarterfinals of all of the Grand Slam events in the same year.
Singles Doubles 1 - The player received a walkover in the third round.
" " - The player lost via walkover. Mixed Federation Cup.