 In 1958, McKay's best Intercounty season as a hurler, he had a 2.79 ERA and topped the circuit in hitting batters with pitches at 16.Off the field, McKay was a specifications writer at General Motors Ltd., Diesel Division.McKay managed London's senior Intercounty team from 1969–1972, 1974–1976 and 1981–1982, winning the Intercounty title in 1969 and 1975.