The Firefly Overnight Endurance Challenge & 10k Trail Race

Get ready to light up the night at The Firefly Overnight Endurance Challenge & 10k Trail Race, taking place on June 27, 2026, in Lewis Center, OH. This unique event invites runners to experience the magic of night racing on the renowned Rocks and Roots trail at Alum Creek State Park, famously built by runners, for runners. Participants can choose from a challenging 12-hour Overnight Endurance Challenge (approximately 30 miles), the 12.4-mile Sunrise & Sunset Double, individual 6.2-mile Sunset or Sunrise 10Ks, or a free 1-mile Kids Race.

The course, known for its hilly terrain, features a single-track trail with roots and ruts, requiring mandatory headlamps and flashlights for all nighttime runners. Typical race day conditions in late June bring highs around 85°F and lows near 64°F, with a 20% chance of precipitation, setting the stage for a memorable summer night run. Beyond the trails, the race offers a festive atmosphere where reflective gear, glow sticks, and body paint are encouraged, celebrating the natural spectacle of fireflies that inspire the event. The start and finish are conveniently located at the Alum Creek State Park Group Campsite, where participants and their families can even opt for overnight camping, creating a true community experience. With fully supported aid stations and a course that weaves through the camping area, this event promises an unforgettable adventure for all who dare to run from dusk till dawn.