6 Hours of Power (John Bryan State Park)
Yellow Springs, United States • 9 May 2026
Event overview
This is a timed loop event held at John Bryan State Park, Lower Stone Shelter, 3790 State Route 370, Yellow Springs, OH 45387, USA. Participants run repeated 5K loops along trails near the Little Miami River within a six hour time window.
Official completion requires at least four loops. A participant’s official race time is recorded at the moment they complete their fourth loop. Overall results record the total number of loops each participant completes during the six hour period. The participant who completes the most loops in six hours is declared the event champion.
The park features a limestone gorge cut by the Little Miami River and is designated as a National Natural Landmark. Trails in the gorge offer views of the river and surrounding landscape.
The event is organized by Wolf Pack Adventures and is permitted under a special use authorization from John Bryan State Park. Registration opens October 5, 2025 and closes May 9, 2026. The registration fee is $60.00.
Local overnight options include the John Bryan campground and nearby private lodging. The John Bryan campground often sells out quickly. Additional local accommodations are a short drive from the park. Visit the organization's website for the most recent information.