Peter Doyle was one of the finest road cyclists Ireland has ever produced, the first Irishman to win the Tour of Ireland and the first rider in history to win both the Tour of Ireland and the Rás Tailteann, and competed at two Olympic Games – the 1968 Mexico City Games and the 1972 Munich Games.

A member of Bray Wheelers throughout his career, Doyle’s 1968 season was one of the most remarkable in Irish cycling history: he won the Tour of Ireland (the first Irishman to do so), the Irish National Time Trial Championship and the Shay Elliott Memorial, and also won two stages of the Tour of Britain while finishing third overall and winning both the King of the Mountains and points classifications. Later that year he competed at the Mexico City Olympic Games.

In 1969 he raced as an amateur in France with Pelforth, winning the Essor Breton stage race in Brittany. He returned to Ireland for the 1970 season and won the Tour of Scotland and a second Tour of Ireland in 1972, earning selection for a second Olympic Games in Munich, where he finished 69th in the road race. In 1973 he won the Shay Elliott Memorial for a second time, and in 1974 claimed the Rás Tailteann, completing the historic double. Paul Kimmage recorded that his own father, the cyclist Christy Kimmage, considered Peter Doyle simply the best Irish cyclist of his generation.

He was inducted into the Cycling Ireland Hall of Fame. He passed away in August 2025.