Starved Rock Country Marathon
Race Day Weather
Cool start, warming up
Runners will face temperatures starting at 53°F, peaking at 70°F by the finish. With a light wind from the SE at 10 mph, runners should maintain a steady effort. Humidity will remain moderate at 58%, so pacing adjustments may be necessary as temperatures rise. A light layer may be useful during the pre-race wait.
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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.
