The information below reflects the 2017 race. Please stay tuned for 2018 info.

Audi Power of Four Trail Run

July 28 - 29, 2018

The Audi Power of Four Race Series is a premier endurance race series utilizing the unique and amazing terrain of each of the four Aspen Snowmass mountains. Each race is designed to test the limits and skills of both elite and recreational athletes.             ONLINE REGISTRATION IS CLOSED. ON SITE REGISTRATION WILL BE OPEN FROM 4PM TO 7PM FRIDAY AND 9AM TO 5PM SATURDAY.             


You have options!

Power of Four - 10K

Even if you aren't ready for the 25K or 50K, you can still join the action. Sunday, August 6 at 11:30AM, Elk Camp Restaurant, Snowmass. Get a taste of what the race is all about this year and come back next year to conquer the whole Power of Four!

Adidas TERREX Fun RuN

Looking for a warm up to the Power of Four or just want to get involved in a casual community run?! Come out for the Adidas TERREX Community Fun Run Friday, August 4 at 6:30PM! The run will begin at the Adidas tent in Upper Gondola Plaza on Aspen Mountain, and end with pizza and refreshments.


US Sky Runner Series

As part of the Altra US Skyrunner Series, the Audi Power of Four Trail Races score points towards the overall rankings and Series prizes (see website for more details at Points are awarded automatically to top finishers, as described on the website. In addition, Series sponsors have giveaways available to runners and spectators via social media. Follow @usskyrunning on Twitter and the US Skyrunning Facebook page for more details about how you can win Altra, Salomon, La Sportiva, Mas Korima and Drymax goodies.

More Info