Platte River Trail 36 Hour

Welcome to the Platte River Trail 36 Hour race in Casper, Wyoming.

Format:

Fat ass, self-support only, no fee.

Course:

Start at Tate Pumphouse (1775 W 1st St, Casper, WY 82604), run eastward on the Platte River Trail, turn around after 1.5 miles at Best Western Downtown (123 W E Street, Casper, WY 82601), and follow the same trail back to Tate Pumphouse.

For those who attempt 100 miles, after running the 3-mile out-and-back course 33 times, an optional 1-mile out-and-back course is available on the same trail, with the turnaround at Amoco Park (1007 W 1st St, Casper, WY 82604).

Time:

36 hours, from 6pm Mountain Time on Sep 25 to 6am Mountain Time on Sep 27.

Size limit:

10.

Race rules:

• Runners must register by September 24 at runsignup.com.
• Runners must be at least 18 years of age and sign the waiver during registration.
• Runners can start anytime after the official race start time. For early starts, please check with the race director.
• Runners can finish anytime before the official race end time, after which runners must be off course.
• When runners temporarily leave the course, they must reenter the race at the same spot and continue in the same direction.
• Runners must provide their own supplies throughout the race, including yet not limited to, water, sports drink, snacks, and food.
• Runners should be prepared to track their exact distance using a commonly used application (e.g. Strava, Garmin, Apple Health).
• Parking is at Tate Pumphouse.

For any questions, please contact the race director.

Happy running!

Join fellow runners on September 25, 2026 for the Platte River Trail 36 Hour. It's a fantastic Platte River Trail 36 Hour featuring a flat and fast course in Casper.