Mammoth Cave 50K/25K

🔔 Registration Opening

REGISTRATION OPENING DELAYED UNTIL MARCH 30, 2025!

Sorry gang for the additional delay, but we've worked through some changes to the race and I wanted to give all prospective registrants some additional time to digest them before hitting the "Register" button!

🌟 New for 2025!

• Waiver Update: The waiver includes a statement that reiterates the strict 8-hour cutoff. Runners missing a cutoff will be pulled from the course for their safety.
• Deferral Policy: Deferrals will no longer be permitted. Those registrants who have been deferred from prior years will be "grandfathered", but no new deferrals will be granted.
• No Refunds: All entries are final. No refunds, deferrals, or bib transfers allowed for any reason.
• Race Day Registration: No race day registrations - please stop asking!

🏞️ Race Day Information

Join us for the 5th running of Mammoth Cave 50K/25K trail race on Saturday, October 25, 2025, in beautiful Mammoth Cave National Park!

Named after the historic railroad that once roared through Mammoth Cave National Park from 1886 through 1931, the Bike & Hike Trail provides a scenic, wooded experience within the Park on a crushed gravel surface. The out-and-back trail offers some challenging ascents/descents along its scenic route, and is perfect for the first-time trail runner or racers looking to set a lightening fast PR!

The race will start at 7:00 AM (Central), for both distances, from the Bell's Tavern Pavilion in Park City, KY, and will end by 3 pm. A hard cutoff of 8 hours will be imposed for both distances.

⏰ Post-Cutoff Finishers

We understand that everyone brings their own pace to the race, and we deeply appreciate the effort and determination it takes to cross the finish line, no matter the time. However, please note that after the 3 pm cutoff, race-day activities will wind down, and many participants, volunteers, and spectators may have already departed.

If you find yourself finishing after the cutoff, we want to assure you that your achievement is no less valued. Your perseverance is something to be proud of, even if the crowds may not be there to cheer you in. We hope you'll take pride in your personal journey and accomplishment on race day, regardless of the time.

💲 Pricing Details

• Opening Day Price: Those who register on opening day (March 30th) will receive last year’s pricing ($85 for the 50K, $65 for the 25K).
• Next Day Price: The very next day (March 31st), pricing will increase to $95 for the 50K and $75 for the 25K.
• Final Price Increase: Fees will then increase to $105 (50K) and $85 (25K) on August 23rd for any remaining spots.

All runners will receive a t-shirt if they register by 8/16/25. We will order extra shirts but we cannot guarantee that we will have your size.

🏕️ Registration Caps & Lodging

Due to National Park restrictions, registration will be capped. At present, we are opening registration to 150 runners, with the hopes of increasing pending permit approval. Based on demand, we may open additional spots in the 50K distance by eliminating open spots in the 25K, or vice versa and adjust as needed.

This event sells out quickly!

Understand this is a trail race. We are limited based on where the trail goes. So unlike a road race, the distance is never exact. This is common knowledge to most everyone who has run trail races in the past but it never fails and there is always one who is upset that their GPS watch showed 16.5 miles when the race said it was a 25K. Everyone is racing the same course, therefore it's an even playing field.

🚰 Race Guidelines

This will be a "cupless" race. Runners will need to provide their own collapsible cups, bottles or hydration packs for refill at the aid stations.

COVID precautions & safeguards may be enforced based on CDC guidelines at time of the event.

🛌 Lodging Options

For lodging options within the Park, please visit this link. Camping reservations are available at this link.

🚫 Cancellation Policy

Please note that NO REFUNDS, deferrals or transfers will be provided for cancellations.

🗺️ Course Map

Course Map can be located at this link.

📅 Stay Tuned

DETAILS ARE DEVELOPING SO STAY TUNED HERE OR OUR FACEBOOK PAGE . . . !

For more information and to register, please visit the official race page.