Niagara Ultra Races Marathon
Race Day Weather
Warm start, adjust pace early
Runners will face temperatures rising from 67°F at the start to 75°F by the finish, with humidity averaging around 70%. Winds from the SW will be light at 9 mph, providing a tailwind early but shifting to headwinds during critical segments. With the heat and humidity, participants should start conservatively and consider hydration strategies, especially as they tackle the climb around mile 8 and the exposed stretches from mile 18 to 26.
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Race Info
The Niagara Ultra Races take place each June in Niagara-on-the-Lake, Ontario, following the Niagara Parkway along the Niagara River toward Niagara Falls. The event offers five distances: 80K, 50K, marathon, half marathon, and 10K. The marathon and half marathon are advertised as Boston Marathon qualifiers. The race is organized by the St. Catharines Roadrunners and Walkers and reached its 32nd running in 2026.
