St. Lawrence Marathon
Race Day Weather
Cool morning, gradual warm-up
Runners will face a temperature increase from 40°F at the start to 54°F by finish. Winds will be a light SW at 8 mph, with occasional gusts up to 24 mph. With humidity at 54%, runners can maintain their pace but should remain mindful of hydration as temperatures rise.
The finish is 20 miles from the start, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 42° and finish around 10:55 AM in 50°.
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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
