About Ivan Mauger
Ivan Gerald Mauger was a New Zealand motorcycle speedway rider. He won a record six World Championships (Finals), a feat equalled only with the inclusion of the Speedway GP Championships by Bartosz Zmarzlik of Poland and Tony Rickardsson of Sweden. In 2010, Mauger was named an FIM Legend for his motorcycling achievements. He averaged 10.42 that season and won the Provincial League Riders' Championship, held at Hyde Road on 28 September 1963. He then won the Riders' Championship for the second successive year in 1964 and topped the league averages with an impressive 11.54 average and helping Newcastle win the league title. In 1966, he qualified for his first world final where he finished fourth, and won the first of his six record breaking World Championships in 1968.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.