Marathon runner crossing finish line with arms raised in triumph
18+ Years Coaching Experience

Unlock Your Endurance Potential

Personalized coaching for triathletes, cyclists, runners, marathon runners, and swimmers. Whether you're chasing a PR or crossing your first finish line, I'll help you achieve your peak performance.

18+Years Coaching
500+Athletes Coached
5Sports Covered

Coach Stephanie has been featured in…

Featured in Yahoo Life
Featured in Bustle
Featured in Buzzsprout
Featured in Glamour
Featured in Popular Science
Featured in TechRadar
Featured in TIME
Endurance Athlete Roadmap coaching athletes

2008

Coaching Since

About Us

Your Partner in Endurance Excellence

My passion for endurance sports started in 2003, and I've been helping athletes like you achieve their dreams since 2008. Whether you want to run your fastest mile or conquer your first Ironman, I'm here to guide you every step of the way.

Using cutting-edge technology like TrainingPeaks and Athletica.ai, combined with proven training methodologies, I create personalized plans that fit your life while pushing you toward your goals.

Passionate Athlete

Training for marathons, triathlons, and Ironman since 2003

Certified Coach

ACE Personal Trainer with C.H.E.K. Institute certifications

Personalized Approach

Science-backed training tailored to your unique goals

Learn More About Me
Sports I Coach

Your Sport, My Expertise

From your first 5K to your dream Ironman finish, I provide expert coaching across all endurance disciplines.

Coaching Services

Find Your Perfect Plan

Choose the level of support that fits your goals and lifestyle. All plans include personalized training based on your unique needs.

Free Community

FREE

Join the Endurance Athlete Roadmap free community on Skool

  • Free community access
  • Free training plans
  • Connect with athletes
  • Basic training tips
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Athlete Roadmap

$49/month

Full community access with training plans and dedicated support

  • Structured training plans
  • Full community support
  • Weekly group coaching
  • Nutrition strategies
  • Race prep resources
Get Started

1-on-1 Coaching

$350/month

Fully personalized coaching with direct 1-on-1 access

  • Custom training plans
  • Weekly adjustments
  • Direct messaging
  • Monthly video calls
  • Race day strategy
  • Unlimited support
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Success Stories

Athletes Crushing Goals

Hear from endurance athletes who have transformed their performance with personalized coaching.

I am very grateful to Stephanie Holbrook for providing a healthy, regenerative running training plan. I started training with Stephanie in 2016 for my first half marathon. At that time, I was working to manage an autoimmune condition, which included going through a pretty intense heavy metal detox protocol and working on healing a hamstring issue. I was amazed that I was able to build significant strength and endurance while also healing! This is due to the wisdom of her program. I won my age group last year: 13.1 miles in 1:52 for Running with the Bears 1/2 marathon in Greenville, California, thanks to her training! This year, I feel even stronger! I appreciate the fat-adapted information for nutrition training as well as physical training. I am a happy, healthy runner, thanks to Stephanie!

Abbey Smith

Runner

Stephanie is a walking encyclopedia of human physiology and nutrition. I recently worked with Stephanie to help resolve some health issues and right from the get-go she created a nutrition and training program that aligned with my health goals. Whenever I had any questions, Stephanie always took the time to answer them – whether by phone, text, or email. And her answers weren't just one sentence answers, she took the time to explain in detail how and why something works the way it does in the human body. If you're looking for a nutrition and training program to help you get on track with your goal, or to prepare for an athletic event, Stephanie is the person you want to work with. I cannot recommend her enough.

Carlos A.

Adventure Athlete

I have been riding my mountain bike for more than 15 years. Only last year did I decide to ride competitively. I did ok but I was never able to reach the top 10. During the off season I decided I was going to try to use technology to get me to another level. I really like the Performance Management Chart in Training Peaks to help me see where I am at. It was very very hard to listen to Stephanie about tapering for my race but I decided to follow her instructions and advice against what I felt was right, and I got third! I am so thankful and she has made me a believer.

Carlos D.

MTB Racer

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