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Athletes and Advocates


Brian Mackenzie


A world-renowned strength and conditioning coach and innovator of the endurance, strength, and conditioning paradigm. MacKenzie created CrossFit Endurance, which specializes in movement with an emphasis in running mechanics and programming. He has worked with professional and elite level athletes in running, cycling, rowing, MMA, MIL/SOF, LEO, Fire/EMT, surfing, swimming, CrossFit - including Olympic Gold Medalists and World Champions. Mackenzie now uses the Cue to promote his take on proper movement mechanics with all of his athletes.

Dr. Nicholas A. Campitelli, DPM, FACFAS

Dr Nicholas A. Campitelli, DPM, FACFAS

Dr. Campitelli is a podiatrist in Akron, OH specializing in foot and ankle surgery with an interest and enthusiasm for running as well as helping runners with injuries. For the past several years he has been treating running injuries in patients by fixing their form and transitioning them to minimalist shoes. Having treated runners with all types of injuries through conservative measures with orthotics and shoe gear changes to reconstructive foot and ankle surgery, Dr. Campitelli has brought what works best and is most current to his practice as well as the Akron and Cleveland running communities. 


Ben Greenfield

Ben Greenfield

Voted as the top personal trainer in the USA and one of the world’s most influential people in health and fitness for 2013 and 2014, Ben Greenfield – Fitness And Lifestyle Performance Coach is head coach at Greenfield Fitness Systems, an Ironman triathlete, Spartan racer, nutritionist, and fitness coach. He holds masters degrees in exercise physiology and biomechanics, and advanced certifications in sports nutrition, personal training, and strength and conditioning.

With over a decade of experience helping professional, collegiate and recreational athletes and exercise enthusiasts achieve their goals, and using practical methods and cutting-edge science, he teaches you how to use the most efficient techniques possible to transform your body, achieve your physical goals and become superhuman – whether you want to finish a triathlon, shed a few pounds, or just live as long and healthy as possible.


Darryl Stingley 

Darryl Stingley Parkour 

Professional Parkour Athlete

"I am in love with these insoles man... Seriously, I feel like I've gained so much just from training in them daily. I no longer have such sensitivity in my heels, even when walking barefoot on the concrete."

Chris Hinshaw

Chris Hinshaw
A former All American swimmer and an experienced professional triathlete with 10 Ironman finishes.  His top international finishes include a 2nd place overall finish at the Hawaiian Ironman World Championships, 2nd place overall finish at the Ironman World Championships in Canada, and a 1st place overall finish at Ironman Brazil.
He is the endurance coach to hundreds of CrossFit athletes that range from the day-to-day CrossFitter looking to efficiently and effectively improve their fitness, to more than two-dozen podium athletes at the 2013, 2014 & 2015 CrossFit Games including Rich Froning, Jason Khalipa, Katrin Daviosdottir, Camille Leblanc-Bazinet, Mat Fraser, and Julie Foucher.

Darrel Wang

Darrel Wang

Darrel comes from a background of high-level Track and Field and Aquatics. After falling short of making Team USA at the 2008 Olympic Trials, Darrel has been finding ways to maximize human potential through all things in life. 
While on an overseas tour in the military, Darrel discovered the mission statement of CrossFit Endurance and soon joined the SME team. From there, he has taught dozens of seminars all over the world. These seminars were far beyond just "running", but also taught efficient movement and exercise. His love for the sport has resulted in much more than sending athletes to the Reebok CrossFit Games, but has also helped the other 99% of athletes at the affiliate level. 
Now that CrossFit Endurance has transformed and branded into Power Speed Endurance, Darrel is in charge of the Military/Special Operations/Special Forces department and is training and developing the next generation's hopeful war fighters and peacekeepers.