there’s a new kid in town.
welcome to theMAMMOTH
208 miles.
sept 26-30, 2025
*Permission to open registration has been granted by INF but a permit is still pending. Recent conversations with our permit administrators have given us the confidence to begin official registration and invites are now being sent to those on the waitlist in descending order from time of joining. We will begin with the first 150 runners as we wait for the final runner cap for 2025.
we are delighted to be the first 200 mile race in the USA to offer prize money to our podiums.
PRIZE MONEY
$5,000: first place female and male
$3,000: second place female and male
$2,000: third place female and male
This race is a labor of love, born out of a desire to showcase the incredible beauty of the eastern sierra, and to create an adventure of a lifetime with the community and quality that you know and love from trailfest.
theMAMMOTH operates on permitted area and uses authorized facilities located on the National Forest and under special use permission from the Forest Service