Lodging Discount
Save 20-30% on your stay when booking with our preferred lodging partners at Mammoth Mountain - visit our site > 2025 event > lodging discounts
Race briefing/athlete presentation/welcome party: 9.18.25, 5:00pm
Kick off the fest with a village welcome party! We will host a live race briefing, athlete presentation and social hour prior to the evening entertainment
Dragon's Back Ascent: 9.19.25, 9:00am, $80 until 3/31
Everyone is encouraged to kick off the weekend with a run, hike, or walk from Twin Lakes Bridge in Mammoth Lakes Basin at 8,500' up the world famous and unbelievably beautiful Dragon's Back Trail to the summit of Mammoth Mountain at over 11,000'. Party on the summit with doughnuts and music as the awards for Dragon's Back Ascent are given during the Summit Ceremony. After a family photo enjoy a scenic gondola ride off the top of California. Spectators encouraged along the course and summit, BRING YOUR COWBELL! $3,700 Purse, 2.5hr cutoff
tenkay: 9.19.25, 6:45pm, $85 until 3/31
GLOWSTICKS AND GOOD TIMES! DJ skizzlefresh will launch you from the village onto a lollipop trail of the cruisiest california carpet - shred beneath christmas lights, jefferey pines, and a fluorescent aid station before bombing back to the village party! custom medals, pizza, and best day brewing, 2hr 15min cutoff - HEADLAMPS REQUIRED
50K: 9.20.25, 7:30am, $195 until 3/31
Single loop course of Mammoth Lakes that starts/ends in the Village plaza designed for maximum beauty, experience, and challenge. With 7,000ft of vertical gain and an average elevation over 9,000ft, this is a true mountain running event that will leave you equally exhausted and inspired to return year after year. $9,000 Purse, 12hr cuttoff
Kid's 1K: 9.20.25, 10:30am, FREE until 3/31/25
Free event for children that will start/end under the same arch all races use in the Village Plaza!
26K: 9.21.25, 9:00am, $145 until 3/31
Single loop course perfect for testing your mountain legs or an elites' finale after a long season of racing. Participants will start in the Village Plaza surrounded by fans and do a small but tough and technical loop of the region with a Mammoth Mountain summit before returning to the lively Village Plaza. $9,000 Purse! 7hr cutoff
Mammoth Triple: 9.19-9.21.25, $360 until 3/31
DBA, 50K, 26K. 3 days, 3 summits. No rest for the weary
Festival
See website for schedule of podcasts, talks, films, volunteering and partnering opportunities, travel, and more!
AWARDS
Top 3 female/male/non-binary runners in each 10 year age group awarded unique gift. Age groups: 15-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70+
Prize Money: $9,000 in the 26K, $9,000 in the 50K and $3,700 in Dragon's Back Ascent, breakdowns can be found on our website
Mammoth Triple: Unique custom awards for top 3 female/male/non-binary overall
Cancellations/Refunds/Withdrawal:
trailfest. reserves the right to cancel or postpone mammoth trailfest. due to a force majeure event, including, but not limited to, acts of nature (e.g., storm, fire, smoke, earthquake, flood), acts of government, strike, lockout, civil disorder, war or commandeering by any agency of government, pandemics, epidemics, and quarantine restrictions, or other unsafe conditions, as solely determined by trailfest. Please be aware that wildfires are a serious risk in the area. Permits to hold the event are also subject to USFS and TOML approval and they have the right to revoke permits at any time. Secondary to fixed costs of organizing this event, refunds will not be given in the event of cancellation. Practical efforts to fairly resolve unforeseen cancellations will be made and the Fest portion will continue regardless of individual event cancellation. In the case of runner withdrawal prior to the event we will honor the following credit policy; 90 days prior to event: 75% credit towards following years event; 30 days prior to event: 50% credit towards following years event; 14 days prior to event: 25% credit towards following years event; <14 days prior to event: no credit given. credits are good for the following year event only and are non-transferrable
Participants must be 15 years of age or older for 50K, 26K, and Dragon's Back Ascent. Participants at least 15 years of age and less than 18 years of age must have parental consent to participate. Younger participants considered on individual basis and if accompanied by an adult.
For specifics on our pregnancy, non-binary, and transgender policies please refer to our website under FAQ
Event's current local time: 10:48 AM PT