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John Duffy

Record type: Motorsport Biographies

Competed in

RacePositionTimeSpeedMachine
1970 Senior MGP72:24:05.0092.12Norton
1970 Junior MGP202:38:11.0085.87Norton
1969 Senior MGP102:34:03.0088.18Norton
1969 Junior MGP152:36:40.0086.71Norton
1968 Senior MGPRNorton
1968 Junior MGP102:38:19.0085.8Norton
1967 Senior MGPRNorton
1967 Junior MGP32:49:50.0079.98Norton
1966 Senior MGP172:41:05.0084.33Norton
1966 Junior MGP252:41:06.0084.32Norton

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