In 2012 the Canadian Olympic Committee honored DiManno for covering over 10 Olympic games. Dimanno was born in Toronto to Italian immigrants. She began her career as a sportswriter in 1975.
DiManno has been a columnist with the Toronto Star since 1989.
DiManno is author of several books, including Glory Jays: Canada"s World Series Champions, a 1993 book about The Toronto Blue Jays" World Series-winning season, Rosie and the Leafs, a 2000 book about the Toronto Maple Leafs, and Coach: The Pat Burns Story, a biography of National Hockey League Pat Burns. Claire Sibonney of the Ryerson Review of Journalism described DiManno as a "provocative and unpredictable bad girl." DiManno"s writing style has occasionally attracted negative attention internationally.