Canadian Tire Motorsport Park’s Grand Prix Circuit — still affectionately called Mosport — is one of North America’s most iconic natural‑terrain road courses. The layout has remained essentially unchanged since 1961, preserving its reputation as a fast, flowing, and unforgiving driver’s circuit.
Track Layout & Length
- Length: Approximately 3.957 km (2.459 miles).
- Turns: 10 corners, all high‑speed and rhythm‑dependent.
- Direction: Clockwise.
- Elevation Change: Roughly 52 meters of vertical variation, contributing to its dynamic character.
Famous Corners & Sections
- Turn 2 / Moss Corner: Perhaps the most famous feature of the circuit. Originally proposed as a single-radius corner, it became a two‑part complex at the suggestion of Sir Stirling Moss, creating a technical, downhill entry followed by a tight exit that rewards precision and bravery.
- Turn 4 & 5 Complex: A fast downhill sweep into a tight double‑apex, demanding commitment and car control.
- Andretti Straightaway: A long, fast straight that allows cars to stretch their legs before the heavy braking zone into Turn 8.
- Turn 8–10 Sequence: A rapid, flowing set of corners that completes the lap with high-speed transitions.
Elevation & Flow
The circuit’s natural terrain produces dramatic elevation changes, blind crests, and off‑camber entries. These features make Mosport a track where momentum matters and mistakes are costly — a hallmark of its old‑school design.
Historical Significance
- Opened: 1961, as Canada’s first permanent road racing facility.
- Early Fame: Hosted the first major international race in Canada, won by Stirling Moss in the 1961 Player’s 200.
- Major Events: Has seen Formula 1, World Sportscar Championship, IMSA, Trans‑Am, NASCAR Canada, and superbike racing.
- Legacy: Despite safety updates and resurfacing over the decades, the core layout remains untouched — one of the few circuits in the world to maintain its original character for more than 60 years.