Colin Dibley (born September 19, 1944 in Sydney, NSW) is a former tennis player from Australia, who won four singles and seventeen doubles titles during his professional career. The righthander reached his highest individual ranking on the ATP Tour on September 26, 1973, when he became the number 35 in the world. September 19 is the 262nd day of the year (263rd in leap years). ... 1944 (MCMXLIV) was a leap year starting on Saturday (link will take you to calendar). ... This is about the city of Sydney in Australia. ... Tennis balls This article is about the sport, tennis. ... The Association of Tennis Professionals (ATP) was formed in 1972 to protect the interests of male professional Tennis players. ... September 26 is the 269th day of the year (270th in leap years) in the Gregorian Calendar, with 96 days remaining. ... 1973 (MCMLXXIII) was a common year starting on Monday (the link is to a full 1973 calendar). ...