 He made semi-finals at Baltimore in 1978 (where he defeated Adriano Panatta) and Costa Rica in 1979.His quarter-final appearances included Stockholm in 1977, Guadalajara in 1978, Philadelphia in 1979 (where he had a win over Ilie Năstase), Palm Harbor in 1980 and San Juan in 1981.Hardie appeared in the main singles draw of 16 Grand Slam tournaments over the course of his career but won just three of his matches.