Marco Zuniga

Marco Zuniga is the Founder and Executive Director of CRR. He is a CRR coach working with both youth runners and ultra-marathoners. Marco races as as a master's athlete, recording past top master's finishes at the Speed Goat 50k and Pikes Peak Marathons.

Marco designed and custom built this three-story Colorado Running Ranch house in 2010. The ranch is a labor of love and true dedication to building a perfect space for athletes to benefit from.

Marco, an El Paso, TX native, has been living and running at altitude in Durango, CO for the last 12 years. 



Lacy Archer is a CRR coach. Cool crisp alpine air, stunning far reaching vistas and icy mountain creeks provide the inspiration for Lacy Archer to run. Although born and raised in Oklahoma, this girl's place is undoubtedly in the mountains where she lives and trains in, what is to her, her own personal natural sanctuary. 

Lacy is an experienced trail runner with a successful resume spanning the full spectrum of disciplines, from steep and rugged 10k's to the European Trans-Alpine stage race and most recently the Javelina 100. However, competitive running is merely a byproduct of Lacy's passion for the trail.

Running for Lacy is a meditative practice fostering a deep connection between body and nature because, at its roots, moving freely in our habitat is a raw and essential element of the human experience. 

Sean Meissner

Sean Meissner is a CRR Mountain Running Guide, running coach of all distances, and professional ultra-marathoner currently sponsored by Montrail, Nuun, Trail Butter, and Clif Bar. He is the former head coach at and currently coaches for Sharman Ultra Endurance Coaching. He is a CRR Affiliate Coach and lives and trains in Durango, CO.

Sean has 170+ ultra marathon finishes and 75+ marathon finishes, with multiple wins in both, including the Canadian Death Race 125K and Sinister 7 148K, both in Alberta, Canada, as well as back to back wins at the 148 mile Desert RATS Ultra Marathon in Moab, UT.

Sean Meissner


Kathryn Ross is a CRR coach and an accomplished trail and mountain runner living in Durango, CO. She has had top finishes at Kendall Mountain race, Kennebec Mountain race, the Cowboy half marathon, and Transrockies run, a 6-day stage race with partner Jenn Shelton. In addition she has had top three finishes at the Leadville Marathon, the Grand Traverse run, Imogene Pass and the Mt.Sneffles half-marathon.

Prior to trail running, Kathryn spent over 8 years racing triathlons at the junior national and elite levels. She spent four years on the US Junior National team before transitioning to the elite level. Two years were spent training at the Olympic Training Center in Colorado Springs after graduating high school. Kathryn made the decision to step away from the elite triathlon circuit in 2012 to begin school at Fort Lewis College in Durango. There she gained a degree in Exercise Physiology. During her time as a college student, Kathryn coached the Durango High School girls swim team for three seasons and the Durango Club Swim Team for two seasons. Currently, Kathryn works as a rehab technician at Integrated Physical Therapy in Durango. As a rehab tech Kathryn works with patients on exercises to regain strength, fitness and movement after injury or surgery.

In her free time Kathryn continues to train and race in the sport of trail and mountain running. She recently completed her first 50-mile race in December at the North Face Endurance Challenge in San Francisco.

Christian Gering

Christian Gering is a CRR coach, post-collegiate runner and rising ultra-marathon competitor. Christian previously competed for and graduated from Fort Lewis College in Durango, CO.  

Christian, an excellent cross-country runner (8k XC PR - 24:13), has successfully transitioned to ultra-marathons, with wins at the Grand Canyon Ultra 50k, the Monument Valley 50k, Moab's Red Hot 50+ and the Bandera 50k. He recently finished 4th in the Speed Goat 50k this past July.

Christian enjoys spending his time covering hundreds of miles at Durango's various altitudes in the Weminuche wilderness above Durango, CO.

Christian Gering