The Firefly Overnight Endurance Challenge & 10k Trail Race

Get ready to light up the night at the Firefly Overnight Endurance Challenge and Sunset & Sunrise 10k—where the magic of fireflies meets the adrenaline of night racing! In the heart of Ohio, this electrifying event celebrates the natural spectacle of fireflies with a twist of endurance. Whether you're in it to smash your personal best or to share a starlit jog with friends, we deliver 12 hours of overnight trail-running excitement, designed by runners for runners. And for the little sparks in your life, the Kids Mile kicks off just before the night unfolds. Mandatory headlamps and flashlights will guide your path, but it's your spirit that'll truly shine. So, don your brightest gear and glow sticks, and prepare to race against the clock from twilight till dawn. Join us under the summer stars—it's time to glow!