lit a candle 13 Sept 2026What he did after boxing, speaking to young people about addiction, that took more courage than any fight. God rest him.
Their story
George Louis Chuvalo was a Canadian professional heavyweight boxer whose career became a national emblem of toughness: in 93 professional fights he was never knocked down, even against Muhammad Ali, Joe Frazier and George Foreman. Born in Toronto on 12 September 1937 to Croatian immigrants Stipan and Katica Cuvalo, he…
George Louis Chuvalo was a Canadian professional heavyweight boxer whose career became a national emblem of toughness: in 93 professional fights he was never knocked down, even against Muhammad Ali, Joe Frazier and George Foreman. Born in Toronto on 12 September 1937 to Croatian immigrants Stipan and Katica Cuvalo, he rose from amateur dominance to five Canadian heavyweight titles and two world-title challenges, then spent later decades as an anti-drug speaker after devastating losses in his family.
Chuvalo turned professional in 1956 after a perfect amateur run and a Jack Dempsey tournament sweep at Maple Leaf Gardens. He won the Canadian heavyweight title multiple times and ranked among the world's top heavyweights through the 1960s. His defining nights came against Ali: a 15-round world-title fight in Toronto on 29 March 1966, and a 12-round rematch in Vancouver on 1 May 1972. Ali won both on points and later called Chuvalo the toughest man he ever fought. Chuvalo also went the distance or stayed upright in stoppages against elite punchers including Frazier and Foreman; referees halted those bouts while he was still standing.
Outside the ring he appeared in films and on television, received the Order of Canada in 1998, a star on Canada's Walk of Fame in 2005, and induction into provincial and national sports halls of fame. Family tragedy reshaped his public life: three sons died amid heroin addiction, and his first wife Lynne died by suicide in 1993. Chuvalo remarried Joanne O'Hara in 1994 and later became a widely known speaker on addiction. In his final years he lived with advanced dementia. He died in Toronto on 12 September 2026, his 89th birthday.
His legacy rests on an unmatched durability record, the Ali fights that made him a Canadian folk hero, and the advocacy that followed personal grief. Communities in Toronto still carry his name, including a neighbourhood centre opened in 2019.
Biography adapted from Wikipedia (CC BY-SA 4.0); BBC; The Globe and Mail; CTV; Global News; Toronto Sun.
In their own words
“He's the toughest guy I ever fought.”
Muhammad Ali after their 1966 fight in Toronto
“Today, Sully's lost a piece of its history.”
Sully's Boxing Gym statement announcing his death, September 2026
Photos
2George Chuvalo at the River Rock Casino, April 2010
Apr 2010 · by People Forever
George Chuvalo, April 2010
Apr 2010 · by People Forever
Exactly. The man defined what it meant to stay standing.