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.


The North Face

Based in Denver, Colorado, The North Face offers unrivaled, technically advanced outdoor products designed for everyone from the most accomplished climbers, mountaineers, snowsport athletes, and endurance athletes to novice explorers in search of adventure.

We are committed to pushing the limits of innovation and design so that you can push your limits in the San Juans and beyond.


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.

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!



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.



Suunto was born in 1936 when Finnish orienteer and engineer Tuomas Vohlonen invented the mass production method for the liquid-filled compass. Since then, Suunto has been at the forefront of design and innovation for sports watches, dive computers and sports instruments used by adventurers all over the globe. From the highest mountains to the deepest oceans, Suunto physically and mentally equips outdoor adventurers to conquer new territory. Suunto's headquarters and manufacturing plant is in Vantaa, Finland, where its products are designed and handcrafted with pride. Because of the importance of possessing mountaineering, wilderness survival and navigation skills at the Hardrock Hundred Mile Endurance Run—as well as Suunto’s heritage in adventure—the race organizers saw Suunto as the ideal partner for the event. Suunto boasts an extended offering of navigational and multisport tools, including the Suunto 9 Baro watch, whose 120-hour battery life in GPS mode, navigation capabilities and training features making it the ideal companion for Hardrockers.


Nathan Sports

For over 40 years, Nathan has provided best-in-class essentials designed to help runners enhance and improve their performance, mile after mile and year after year.
Our hydration vests and handhelds, waist and running packs, safety gear and apparel, offer a perfect balance of form, fit and function for athletes at all levels. When facing the rigors of the Hardrock 100, you want what matters most – intuitive design, comfort, quality and smart storage.
As the market leader, and inspired by your journey, Nathan continues to strive to offer runners the best, purpose-driven solutions to have their best runs.
Nathan products are available online as well as specialty running shops, outdoor retailers, and sporting goods stores in 45 countries and counting.



For more than a decade, iRunFar has brought the front of each Hardrock 100 to phone and computer screens around the world, seemingly by magic. From learning on lottery day who'll face off at the next Hardrock, creating handfuls of pre- and post-race interviews, its exhaustive live race coverage from the San Juan Mountains’ peaks and passes, and on through the awards ceremony, iRunFar is there to share the incredible journey that is Hardrock with all of you.

Gold Partners


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.



Hypoxico is the world leader in altitude simulation equipment and training services, and our systems are used by athletes and mountaineers for performance enhancement at altitude and at sea level. Hypoxico offers a wide variety of altitude training products including Sleeping Tent and Sleep Mask Systems, Stationary exercise training equipment, as well as Intermittent Hypoxic Training (IHT) equipment which offers altitudes up to 21,000ft. Users can expect almost complete acclimatization to altitude, improved endurance, and enhanced recovery.


Method Seven

Method Seven UltraTrail makes Experience Optics. Unlike most sunglasses, which are typically about fashion and often darken and distort, Method Seven (M7) glasses are designed to enhance your vision and overall running experience. UltraTrail features include advanced notch filtering for exceptional optical quality and superior peripheral vision, unique 30% partial polarization for better trail definition, ultra-lightweight titanium frames (the lightest glasses you’ll find!), infrared protection in addition to typical 100% UV protection, and slip-free temple tips and "no tangle" nose bridges for women. The result is a lens that is brilliantly bright allowing more of the most useful wavelengths of light to your eyes and brain, comfortably and safely. More light means more information to make faster and better decisions for unmistakable foot placement, especially when it comes to technical terrain like the Hardrock 100 course. M7’s UltraTrail glasses are the most unique and best choice for a trail runner. Unmistakable and proven.


Participating Partners


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.


Berkeley Park Running Company

Berkeley Park Running Company in Denver opened in 2017 as the only independent Colorado shop to service all your trail and ultra needs. We’re dedicated to providing top notch service and 100% committed to our ever expanding community of athletes. Shop small, shop local and don’t stop ‘til you kiss the rock!!!