Johnston was a member of the Cyprus Cycling Club[1] and was the outstanding performer in the 1960 season opening King's Moss 255.[2]
He maintained his form throughout 1960, coming second in the national mass start championship[3] A plumber by profession from Castleagh Road, Belfast, he won the 75 mile Dublin massed start in March 1961 and then clocked the fastest ever time for 25 miles in Ireland.[4]
Initially listed as an Empire Games reserve, he was one of three athletes to be added to the team in September 1962.[5]
At the 1962 British Empire and Commonwealth Games in Perth, Australia, he represented the 1962 Northern Irish team[6] and participated in the road race and scratch events.[7] He finished just outside the medals in the road race finishing fifth.[8][9]