Our races are made possible with the generous help of our fantastic sponsors. We primarily seek to work with local Fort Collins and Mountain West companies that share a passion for sustainability, quality and active lifestyles. All companies, products and individuals that sponsor our events are entities, goods and people that we believe in, can honestly endorse and are happy to promote. To inquire about sponsorship opportunities, please email us at racedirector@gnarrunners.com.


Altra Zero DropAltra Zero Drop

Altra was created by elite athletes & running store managers to help prevent and solve common running injuries through proper running technique and natural foot positioning.


Colorado Physical Therapy Specialists

Colorado Physical Therapy Specialists is your primary care provider for all your orthopedic needs. Specialists in sports injuries, neck and back pain, chronic pain, and women’s health. Providing expert care including spinal manipulation, trigger point dry needling, and the only clinic in Colorado certified to provide ASTYM (www.astym.com), a revolutionary treatment for chronic tendon pain including plantar fasciitis.


Cornerstone Home Lending – The Hunter Team

Cornerstone Home Lending is an accomplished, full-service mortgage banker founded on the principles of lending with excellence, integrity and distinction. As the official sponsor of the Quad Rock 50 prize purse, the Hunter Team at Cornerstone Home Lending continues to show its dedication to the local running community. We couldn’t be happier to be working with such an upstanding team.

Justin K. Liddle DMD, LLC

Jusin Liddle specializes in fixed and removable prosthodontics and reconstructive implant dentistry. In short, if you crack your teeth after a nasty face plant on the trails, Justin can provide the experienced, quality care you need to restore your perfect smile.

Countryside Animal Hospital

Countryside Animal Hospital is a family owned business in Ft. Collins, CO, established in 1993 by local ultra runner Dr. Catharine Speights. Countryside Animal Hospital specializes in personalized care of dogs and cats in a home-like setting.

Fort Collins Running Club

The Fort Collins Running Club has been promoting fitness through running since 1971 in Fort Collins and its surrounding communities. FCRC membership benefits include entry into all Tortoise & Hare races, discounts on local race events, discounts at local running stores, and regular club runs and social events.


Tailwind NutritionTailwind Nutrition

Tailwind Nutrition was founded by endurance athletes in Durango, CO. Its product, Tailwind Endurance Fuel, combines complete fuel, hydration, and electrolytes in a tasty drink that won’t turn your stomach into a brick and will keep your taste buds happy hour after hour. Hydration pack and bottle friendly, Tailwind Endurance Fuel is available in five flavors and an unflavored version. All you need, all day. Really. For more information, visit: www.tailwindnutrition.com.

Runners can receive a 15% discount by “liking” Tailwind Nutrition on Facebook.


Succeed will provide S! Caps buffered electrolyte caps for all aid stations. Developed in 1995 by scientist and ultramarathoner Karl King, SUCCEED! Electrolyte Caps have become The Gold Standard for Electrolyte Replacement. Succeed is a local Northern Colorado company owned and operated by Karl King in Windsor, CO.

Great Harvest Bread CoGreat Harvest Bread Co

Great Harvest is located in Scotch Pines Village at Drake and Lemay. Everything is made from scratch with only the finest ingredients and they never use any preservatives or artificial additives. We encourage everyone to stop in and try a free slice of bread fresh out of the oven!

Erin Bibeau Photography

Erin’s passion is photographing people in their element and capturing moments from life’s most inspiring events. Erin is based in Fort Collins, Colorado and and provides Portrait Photography, Lifestyle Portraiture, Event Photography, Wedding Photography, Interior Space Photography, and Commercial Photography.

Kristel Liddle, LMT
Local ultra runner, Kristel Liddle, will be providing post race massages for our half marathon participants. Kristel is a graduate of The Healing Arts Institute and specializes in Neuromuscular Therapy, Swedish, and Deep Tissue massage.