Mander also won two world 18-footer championships, in 1952 and 1954, as well as 16 New Zealand national yachting titles in eight different classes. In 1972 he was named New Zealand yachtsman of the year, and in 1990 he was inducted, with Jack Cropp, into the New Zealand Sports Hall of Fame.[3]
Outside of yachting, Mander was a businessman. He joined Christchurch clothing company Deanes Industries in 1950 and rose to becoming managing director. He also served as a director of the clothing and retail companies R.W. Saunders and Hallenstein Brothers.[3]