Career
He also rode in four World Finals (1955, 1957, 1958 and 1960) during his career finishing a best 5th in 1960. Johnston began riding at the Tahuna Park track in Dunedin in 1949. He moved to England in 1950 and joined the Belle Vue Aces.
He captained the team from 1957 until his retirement at the end of 1961.
1955 - London, Wembley Stadium - 12th - 6pts
1957 - London, Wembley Stadium - 6th - 9pts
1958 - London, Wembley Stadium - 8th - 8pts
1960 - London, Wembley Stadium - 5th - 10pts.