St. Lawrence Marathon
Race Day Weather
Cool start — fast day potential, warming through the race
A cool 41°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 54°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.
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Race Info
A Boston-qualifier marathon that follows the St. Lawrence River from Crysler Park Marina to St. Lawrence College in Cornwall, Ontario. Half marathon, 10K, and 5K distances follow the Great Lakes Waterfront Trail along the same stretch of river. The course has a net downhill elevation profile. Source
