Half Marathon races near Springfield

Springfield Training Notes

Springfield hosts 2 Half Marathon races in 2026 within 80 km of the city centre — upcoming dates, recurring series, and other races nearby, all in one place.

Springfield runners use Washington Park for steady laps, warmups, and extra miles. The big loop runs 32 km with 15 m of gain, and the small loop runs 2 km with 24 m of gain. The route covers 82 km and gains 11 m. The full route covers 48 km and 43 m of gain. DistanceProject keeps the community side moving. Springfield Road Runners Club hosts races, group runs, trainings, and socials. The Lincoln Presidential Half-Marathon, Illinois State Fair Parade Run, Abe's Amble 10K/5K, and Frostbite Festival anchor the calendar.

Springfield riders lean on the Sangamon Valley Trail, Wabash Trail, Interurban Trail, and Lost Bridge Trail for Z2, tempo, and town-to-town miles. The Sangamon Valley Trail north branch toward Sherman is the favorite ride for distance, speed, and scenery. The Interurban Trail goes to Chatham, and the Lost Bridge Trail goes to Rochester. Springfield Bicycle Club runs road and gravel programs from late April to October and hosts the Capital City Century. Gravel riders use Cass County Gravel when they want wide open work, Indian Creek valley rollers, and Crazy Horse Hill. Thunder Road Gravel Tour, Sangamon Cycling Series, and the Gold Star 500 keep the bigger ride days honest.

Late April to October gives Springfield cyclists the cleanest season for group rides, base miles, and longer road days. Summer brings hot, humid air, so locals start early, carry more fluid, and watch the sky because thunderstorms are common. Runners still get good work done through summer with Thursday 5k fun run/walks at Springfield Running Center and shorter intervals when the heat stacks up. Winter changes the rhythm for both sports. Cyclists move carefully around cold, rather snowy stretches, while runners keep the habit alive with Frostbite Festival energy and whatever Z2 the day allows.