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The Cameco Cowboy Tough Expedition AR, Curt Gowdy Strong, and Curt Gowdy Tenderfoot are managed and directed by Adventure Enablers. From events that last just a few hours to multiday races, Adventure Enablers caters to both beginner and experienced participants. Vetted courses, good maps, great venues, and a fun and safe environment are key components of every Adventure Enablers race. 


Event Staff



Mark Harris - Race Director

Having grown up in the mountains of South Wales, UK, Mark has always had a passion for the outdoors. His family ran an outdoor education center where mountain biking, hiking, rock climbing, kayaking, caving, and other outdoor pursuits were a part of everyday life. After teaching climbing at a camp in Pennsylvania for two summers, Mark moved to the States to be with his summer love, Margo and the rest is history.

Mark is the primary race director for the Cameco Cowboy Tough, a 3.5-day expedition race through Wyoming, the Run & Ride half marathon race series held at multiple Cedar Fair amusement parks, and the Shenandoah Epic Adventure Weekend, one of the largest adventure racing events in the country. Mark lives in Front Royal, Virginia with his wife, Margo, and their two children.

Mike Spiller - Race Director

Mike has been an active athlete most of his life but has found his talent and passion lies with endurance multi-sport adventure racing. His first challenge was climbing Mt Kilimanjaro in 2006. He followed that challenge with over 100 adventure races ranging from sprint Tough Mudder events to Primal Quest Montana. Spiller shares his passion of the sport by operating the company with his former teammate and now business partner Mark Harris. Together they focus on activities to get family active outdoors while creating unique events to keep people active.

Margo Harris - Director of Communications

While growing up as the youngest of five in Tennessee, Margo developed a love for adventure under the high-octane tutelage of her older brothers. While earning her Journalism & Mass Communication degree from UNC (Go Heels!), she worked as a summer camp counselor in the Poconos, where she first met her ropes course and climbing wall colleague and future husband up in a tree. After getting married, earning a masters in English from George Mason University, having two awesome kids, and working as a full-time and freelance editor, she took on her next adventure--becoming the Director of Communications for the family business.


Margo thinks she may have found her calling--she loves seeing familiar faces at events, meeting the folks who've emailed with questions, getting to know first-time participants, and seeing racers achieve their goals and glow with pride. She also loves putting her journalistic skills to work keeping everyone informed in ALL the ways--website, Facebook, Instagram, Twitter, email, phone, you name it. When Margo is not working at a race or on a field watching her kids play sports, she continues to nurture a love for the mountains and outdoor activities, from hiking to paddling to rock climbing, right outside their back door in Front Royal, Virginia.

Vanessa Spiller - Sponsorship

It all began with a passion for living well and an enthusiasm for fitness.  Vanessa has always possessed a genuine passion for an active lifestyle and nutrition. Vanessa is certified in Nutrition (health and wellness), on the TRX Suspension Trainer, and Personal Training. Vanessa believes that moving our bodies every day in some way makes us healthier and happier.

Vanessa holds a Bachelor’s degree from Radford University and a Master’s degree in Marketing from Johns Hopkins University. 

She enjoys strength training, running and cycling. One of her favorite past times is tap dancing. She and her family, husband Michael, two children, and the BEST DOG EVER reside in Centreville, Virginia.

Greg Pulliam - Sponsorship and Logistics Manager

Before officially joining the Adventure Enablers crew, Greg spent 16 years coaching women's college basketball at the Division I level.  He was introduced to the coaching profession while finishing up his BS in Physical Education at Liberty University. From there, he received his MS in Sports Administration from the University of Southern Mississippi.

After coaching, Greg spent 2.5 years working for Rev3 Tri. While working there, he met Mike and Mark and began working and volunteering at Rev3 Adventure (now Adventure Enablers) events.  In January 2016, Greg officially joined the team full time as the Sponsorship and Logistics Manager.  He is joined on this adventure by his wife of 10 years, Julie.

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