George Tintor joined the Argonaut Rowing Club of Toronto at the age of 14 and won the 1974 Canadian national junior championships in the pairs alongside the non-Olympian Keith Caynes. This earned them a trip to that year’s Junior World Championships, where they placed sixth. Tintor reached at the peak of his rowing career, however, while studying for an undergraduate degree in finance at the University of Pennsylvania. He took a break from his education to train more with the Argonauts and was selected to represent Canada in the eights at the 1976 Montreal Games. There, alongside Edgar Smith, Dirk Gidney, James Henniger, Patrick Croskerry, Mel LaForme, Ron Burak, Alexander Manson, and Robert Choquette, he placed eighth. He continued rowing competitively, but retired from active competition when the United States-led boycott of the 1980 Moscow Games ended his chance to participate in a second Olympics. After obtaining his finance degree, Tintor earned an MBA from Columbia University and had an international career in investment banking.