Mosport opened in 1961 as Canada's first major purpose-built road circuit. Its fast, blind and undulating layout alternated the Canadian Grand Prix with Mont-Tremblant before hosting regularly, but limited run-off and ageing facilities ended Formula 1 use after 1977.
The confused 1973 race introduced Formula 1's first safety car, which picked up the wrong leader and left the result uncertain for hours. Jack Brabham had won the circuit's inaugural World Championship race in 1967.
Across 3.957 km, its 10 corners create a distinct rhythm between braking, precision and acceleration. As a permanent racing circuit, it asks drivers and teams to adapt setup, tyre management and race strategy to the venue's particular constraints, while its clockwise direction shapes the sequence of its most demanding sectors.