Starved Rock Country Marathon

Get ready to discover the "must-do" Starved Rock Country Marathon, Half Marathon, 10K, and 5K on May 9, 2026, in scenic Ottawa, Illinois. This race weekend is renowned in central Illinois for its stunning natural beauty and challenging, rewarding courses. Typical race day conditions in early May offer ideal running weather, with highs around 70°F and lows around 46°F, and a modest 20% chance of precipitation.

The full marathon course, a Boston Qualifier, promises an unforgettable journey through the rolling country hills and heavily wooded areas carved by the Illinois River thousands of years ago. Runners will navigate challenging elevation changes, including relentless hills, particularly from miles 6 through 20, leading through Starved Rock State Park with its towering sandstone bluffs and natural rock formations. The Half Marathon offers a point-to-point route, starting within the heart of Starved Rock State Park and continuing along wooded scenery before a "flat, fast" finish in historic downtown Ottawa along the Illinois River. New for 2026, the 10K provides an out-and-back experience along a scenic portion of Route 71 right on the riverbanks. All routes are on paved surfaces, ensuring a smooth run amidst the captivating landscape.

Runners can expect exceptional support, with the full marathon featuring 16 aid stations fully stocked with Gatorade and water, plus GU at two stations, while the half marathon offers seven aid stations, and the 5K has three. Porta potties are available at each station. Friendly volunteers and a well-marked course with mile markers contribute to a seamless race experience, often noted for its "hometown hospitality" and smaller field size, allowing a deeper connection with nature. Upon crossing the finish line in downtown Ottawa, participants will be greeted with water, Gatorade, oranges, bananas, and bagels. Marathon finishers even receive a complimentary "26.2 brew" at The Lone Buffalo, a unique local touch to celebrate your achievement.