In 1970, he won the Western Australian Championships in Perth defeating Tom Gorman, Richard Russell, and Phil Dent in the final.

There is some confusion over the 1969 US Open Championship title, which is held by Stone and Dick Crealy conjointly with Ken Rosewall and Fred Stolle.

The era of Open Tennis commenced in 1968, and at that time Boston was the home of the U.S. National Doubles Championship.

Accordingly, contract professionals boycotted the tournament, with many playing instead at Forest Hills, which was won by Rosewall and Stolle.

Crealy and Stone won the doubles in Boston in 1969 as professionals, defeating Charlie Pasarell and Bill Bowrey.