Starved Rock Country Marathon
Race Day Weather
Comfortable temps, big temp swing
Mild 53°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 71°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
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Race Info
The Starved Rock Country Marathon takes place each May in Ottawa, Illinois, alongside a half marathon, a 10K and a 5K on the same weekend. The marathon starts and finishes at the corner of LaSalle Street and Jefferson Street in downtown Ottawa, and the course runs along the Illinois River through Starved Rock State Park, passing its sandstone bluffs. The half marathon starts separately, inside the state park itself, rather than downtown. The race returns for its 12th edition in 2027.
