St. Lawrence Marathon
Cornwall, Ontario, Canada
Apr 25, 2026 - Saturday
5k, 10k, Half-marathon, Marathon
Race Information
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.
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Ontario Run Pick of the Month - Toronto Marathon
Downhill, point to point marathon happening in May, 2026.
If you are looking for a downhill Boston Qualifying course you may want to consider the Toronto Marathon.
This race features a certified course that finishes at Exhibition Place on Toronto's lake shore. 18,000+ runners from 72 countries participated in the 2024 event across the marathon, half, 10k, and 5k distances.
Click the button below to learn more about the event.
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Race Facts
Race Size: 500 - 1,000
Course Type: Road
Boston Qualifier: Yes
Kids Run: No
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