Karl Riecken


Englewood, CO
United States



Sport Types

Triathlon, Road Cycling, Running, Duathlon, IRONMAN, Swimming, Personal Training, Rowing, Adventure Racing, High School Cross Country, Collegiate Cross Country, Corporate Wellness

Preferred Athlete Levels

Beginner, Intermediate, Advanced, Professional


Becoming the athlete you want to be encompasses much more than the training alone. This is why I incorporate much more into my coaching than only triathlon, swim, bike, run, strength training, and injury prevention sessions. Athletes who work with me will tackle their nutrition, sleep, and stress. We will work to solve issues that you never thought you would master.

Whether you are an executive, a professional athlete, a beginner, or somewhere in between, we will create your best plan together.

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My goal is to turn my athletes into the best people they can possibly be. I have a far-reaching education and experience that allows me to have insights into performance that few other experts have. I have worked myself up to the top levels of academic study, athletics, and musical pursuits. I integrate the lessons I've learned along the way with the latest protocols from thought leaders in the fields of nutrition, sleep, strength training, hormone optimization, expert performance, functional medicine, psychology, and of course swimming, cycling, running, Olympic weightlifting, CrossFit, rowing, and corrective exercise to devise your optimal program.

My experience:

  • Doctor of Osteopathic Medicine (cand.) (RVUCOM-CO)
  • Coordinator of the National Training Center's Human Performance Lab
  • Adjunct faculty for the University of Central Florida in Sport and Exercise Science
  • Educator for USA Triathlon and the College Swimming Coaches' Association of America
  • National Team Performance Assistant for USA Triathlon at the US Olympic Training Center in Colorado Springs
  • National Team Performance Intern for USA Swimming at the US Olympic Training Center in Colorado Springs

My Education and Certifications

  • Master's in Exercise Physiology
  • USA Triathlon Level II and Youth/Junior Specialist
  • Certified Sports Nutritionist (International Society of Sports Nutrition)
  • Certified Strength and Conditioning Specialist (NSCA)
  • USA Weightlifting Sports Performance
  • RRCA
  • USA Cycling Level 3 (lapsed)


1-on-1 Coaching, Consultations, Local Coaching, Remote Coaching, Strength Training, Nutrition, Mental Skills, Run Analysis, Swim Analysis, Biochemical Analysis

Have a question? Contact me.

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Englewood, CO
United States