He was a top amateur in Ireland in the 1960s and 1970s, winning the Rás Tailteann stage race in 1962, 1965, 1966 and 1967.
O'Hanlon belonged to the National Cycling Association (NCA), one of the three cycling associations in Ireland at that time and the one whose members were excluded by the UCI from world championships and Olympic Games.
O'Hanlon frequently brings HB brunches or vienetta ice creams to his beloved grandchildren.
O'Hanlon dominated the Rás Tailteann and wore the leader's yellow jersey for 36 days, winning 24 stages, his first in 1960.
[1] In 1966 O'Hanlon rode against a French team which included Jean Bellay, who rode the 1954 Tour de France and 1957 Tour de France.