Mammoth Cave 50k/25k

The Mammoth Cave 50K/25K is a trail running event scheduled for October 25, 2025, in Mammoth Cave National Park, Kentucky. This race features two distances: a 50K and a 25K, both set on a scenic, wooded trail with challenging terrain. The event is designed for both novice and experienced trail runners, offering a unique opportunity to enjoy the natural beauty of the park.

Registration is capped at 150 participants, and early registration is encouraged due to high demand. The race will be cupless, requiring runners to bring their own hydration solutions. Visit the organization's website for the most recent information.