Mammoth Cave 50K/25K

ATRA race member


Oct 22, 2022 at 7:00 AM

Mammoth Cave 50K/25K

130-318 Old Dixie Hwy

Park City KY, 42160


Event Facebook page

Entry Fee $65
(Lowest or Early Registration)

Entry Fee 2 $85
(Highest or Late Registration)

Prize Money: no


  • 25K
  • 50K

Type: Ultra

Participant Limit: 75

Percent of the course on un-paved trails: 75%

First Year of the Event: 2021


Join us for the Mammoth Cave 50K/25K trail race on Saturday, October 22, 2022!

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 trail offers some challenging ascents/descents along its 9-mile crushed stone route, and is perfect for the first-time trail runner or racers looking to set a lightening fast PR!

New for 2022:

  • Both distances will start at 7:00 AM.
  • The Start/Finish will take place at the Bell’s Tavern pavilion in Park City.

Due to National Park restrictions, registration will be capped. At present, we are opening registration to the same 2021 level of 75 runners, with the hopes of increasing pending permit approval. We will open the initial registration to 50 entries for the 50K and 25 entries for the 25K. 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.

With the cap of 75 runners, we expect this event to sell 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. 

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.

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


Race event photo


Past Event Dates

Held on Oct 22, 2022

Held on Oct 23, 2021

Event Results

View 2021 Results