Our Title Partner




SmartWool joins us at the Title level. They've been known for quality outdoor gear that doesn't leave you cold (or stinky!) for decades. Welcome to SmartWool! For more information, visit: Smartwool.


Presenting Partner



"This stuff just works!" From 1991 to today, athletes the world over have come to the same conclusion: GU works. Our Berkeley-based sports nutrition company was founded with GU Energy Gel, a revolutionary and more effective method to keep athletes fueled during exercise. Since then, GU has continued to improve the recipe, incorporating the latest scientific research into its products and has introduced Roctane Ultra Endurance gel & drink, Chomps Energy Chews, Electrolyte Brew & Tablets, and Recovery Brew. Throughout our history we've been striving to do one thing: help athletes go faster and longer than ever before. Learn more about GU and our performance sports nutrition products

Diamond Partners



Altra® Footwear was created by runners for runners in the steep, rocky Wasatch mountains of Utah. Altra was founded by Golden Harper, Brian Beckstead and Jeremy Howlett in 2011, and their distinctive FootShape toe box and Zero Drop™ sole was an immediate hit with the ultra-running community, who necessarily spend continuous hours on their feet. In just a little more than 4 years, Altra has become the third largest trail shoe brand in the Run Specialty channel and now has 3 of the top 10 selling shoes in the industry, according to research from NPD.

Altra’s passionate and committed team has produced an award-winning trail running line. These Hardrock®-ready shoes include the Superior™, Lone Peak™, and Olympus™ models, and all have the Altra-invented Gaiter Trap™ system to keep out those San Juan rocks! With mountains built into its DNA, Altra is thrilled to be part of Hardrock 100 Endurance Run.


Tailwind Nutrition

Tailwind Nutrition was founded by endurance athletes in Durango, CO. Its product, Tailwind Endurance Fuel, is designed to overcome the nutrition problems faced by endurance athletes in events like 50's, 100's, 24-hour, and multi-day epics. Tailwind combines complete fuel, hydration, and electrolytes in a tasty drink that won't turn your stomach into a brick. Hydration pack and bottle friendly, Tailwind Endurance Fuel is available in four flavors and an unflavored version. All you need, all day. Really.


Black Diamond

A company born on the granite walls of Yosemite Valley nearly 50 years ago, Black Diamond is the evolution of a group of passionate and innovative individuals dedicated to crafting a unique collection of trusted, award-winning products, serving the needs of climbers, ultra runners, backcountry skiers, and mountain travelers worldwide.


Trail Runner Mag

Trail Runner is the only magazine dedicated to the off-road running community, encouraging runners of all ages and abilities to experience the outdoors and achieve a healthier lifestyle through off-road running. Trail Runner magazine inspires and informs with accurate, intelligent and in-depth writing and compelling photography. In addition to our high-quality print magazine, we offer a vibrant website, active Trail Runner magazine Facebook page and fresh content in our weekly e-newsletters (Trail Tips).

We at Trail Runner are thrilled to partner with the Hardrock Hundred Endurance Run, one of the world’s greatest runs and one that we have covered extensively in print and online. We hope to see you in Silverton!



Gildan is a leading manufacturer and marketer of quality branded basic family apparel, including T-shirts, fleece, sport shirts, underwear, socks, hosiery, and shapewear. The Company sells its products under a diversified portfolio of company-owned brands, including the Gildan®, Gold Toe®, Anvil®, Comfort Colors®, American Apparel®, Alstyle®, Secret®, Silks®, Kushyfoot®, Secret Silky®, Peds®, MediPeds®, and Therapy Plus™ brands. Gildan is excited to be a partner of the Hardrock Hundred Endurance Run.


Four Winds Interactive

Four Winds Interactive (FWI) is an industry-leading digital signage software company focused on providing the most comprehensive Visual Communications solutions to markets around the world. With software deployed in more than 65 countries, FWI drives Visual Communications to over 500,000 screens across a variety of industries.



Julbo was born in the Chamonix Valley of France over 130 years ago, designing and manufacturing protective eyewear for mountain-goers. Today, Julbo is still a family run company creating the best performance eyewear for all conditions in the mountains serving climbers, trail runners, skiers and riders.



At Kahtoola, we combine our love for the outdoors with our love for technology and design. This formula results in products that we believe will exceed expectations and help outdoor enthusiasts achieve a new level of adventure.
We’re convinced a healthy mind is fueled by an active lifestyle, and Kahtoola can help you achieve your goals, whether you’re hiking, running, mountaineering or simply walking your dog.



If you're looking for pure power, look no further. OPTIMA® batteries deliver the long-lasting, unsurpassed performance that today’s auto professionals and enthusiasts demand. Our unique SPIRALCELL TECHNOLOGY® and PUREFLOW TECHNOLOGY™ give OPTIMA batteries over 15 times more vibration resistance and increased cycle life compared to traditional batteries. And every OPTIMA battery is NON-SPILLABLE and maintenance-free for absolute peace of mind.
So, no matter how extreme the conditions, OPTIMA batteries deliver the ultimate in power, performance and reliability. We manufacture our own batteries in a dedicated facility, where we meet our demanding OPTIMA Batteries standards and have completely revolutionized how batteries are designed and built.

Gold Partners


Ultimate Direction

Welcome to Ultimate Direction, a valued partner for the Hardrock Hundred. UD is tickled to announce a special edition Hardrock ultra vest, which will be available during the event in Silverton. It's just one cool way to wear one of the best hydration vests on the market while showing your affection for one of the toughest ultras on the planet. Ultimate Direction: making tools for the self propelled since 1985 – check them out!


Squirrel's Nut Butter

Originally created to heal damaged skin, Squirrel's Nut Butter is a superior anti-chafe and restorative skin salve. Using only a handful of ALL NATURAL ingredients, SNB reduces skin inflammation and irritation. Used from head to toe, SNB puts an end to your post-race shower yelps! Handmade in Flagstaff, Arizona.



OpenSplitTime is a site for endurance athletes, fans and families, race directors, volunteers, support crews, and data geeks. Our purpose is simple: to make it easy to collect endurance event data, play with it, plan with it, safely archive it, and never worry about it again.The site is built and maintained by OpenSplitTime Company, a Colorado nonprofit corporation. OpenSplitTime is developed and maintained by endurance athletes for endurance athletes.


Participating Partners


High Desert Drop bags

Made in Bishop, California, by veteran ultra runner Jan Gnass, High Desert Drop Bags are a good choice for keeping your gear together, secure, easy to find and transport, and out of the weather at an event.


Run High Get Steep - Aravaipa Running


Get Steep, Run High. AKA Aravaipa Running. You've seen the cute ram t-shirts all over town, with the tongue-in-cheek admonishment to "get high". That's the brainchild of Jamil Coury and his events company Aravaipa Running.