St. Lawrence Marathon

Cornwall, ON, CanadaApril 26, 2025

partly-cloudy-day Partly cloudy throughout the day.

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A Boston-qualifier marathon that follows the beautiful St Lawrence River from Crysler Park Marina to St. Lawrence College in Cornwall, Ontario. As well as Half-Marathon, 10km and 5km distances that follow the scenic Great Lakes Waterfront Trail. Source

Area Map

Course Maps

FAQ

When is the 2025 St. Lawrence Marathon?

The 2025 St. Lawrence Marathon will be held on Saturday April 26, 2025.

Is the St. Lawrence Marathon a Boston Marathon Qualfier?

Yes, the St. Lawrence Marathon is an official Boston Marathon qualifier.

Community

Historical Weather

RunScore
Run Score: 6
Temp
53°F
Min/Max
44°/56°F
Dew
37°F
Days of Rain
2/3
Wind
14mph
Tap a row for details.
YearConditionsLow / HighRainRunScore
2024
clear-day
46°/ 71°-
Run Score: 8
2023
partly-cloudy-day
47°/ 55°Light
Run Score: 7
2019
rain
39°/ 42°Light
Run Score: 5