Greg Marshall
Greg Marshall Treeline Endurance
Greg Marshall
Level 2 Coach

This is the highest level of TrainingPeaks accreditation. Level 2 coaches have completed TrainingPeaks University and have demonstrated their ability to utilize metrics in TrainingPeaks. They can provide you with the expert instruction and feedback you need to achieve your goals.

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TrainingPeaks Certified Coach Level 2
Greg Marshall Treeline Endurance

Evergreen, CO , United States



Sport Types
  • Running
  • 1-on-1 Coaching
  • Consultations
  • Remote Coaching
  • Strength Training
  • Nutrition
Meet Your Coach
Greg Marshall
TrainingPeaks Certified Coach Level 2
Greg Marshall Treeline Endurance
Evergreen, CO United States 80454
Coach Bio

Coach Greg Marshall specializes in trail and road running events. He has rapidly built a strong resume of helping athletes conquer their new, longest event finishes.

Greg is a science-driven coach who puts incredible focus on continuing education. He devotes exceptional amounts of time to understanding the complex physiology and psychology that get athletes to the finish line, and he publishes his discussion of these topics on his website at

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Coach Greg Marshall has nearly a decade of experience training and racing for running races races. He was also a standout athlete on his collegiate rowing team, and has been on two multi-day backpacking efforts totaling to over 600 miles.

Greg is a TrainingPeaks accredited coach and a certified member of the Stryd Power Coaching Group, in addition to more commonplace training strategies like heart rate and pace.

As a coach, Greg puts a high value on two things: understanding the whole athlete (both running and the life aspects that influence training), and backing up training with strong scientific foundations. His coaching philosophy has been heavily influenced by the work of authors like Alex Hutchinson and Christie Aschwanden as well as sports physiology researchers at Montana State University, University of Calgary, University of Colorado, and more. He truly loves the continuous education aspect of coaching and is always incorporating the newest breakthroughs into how he trains his athletes.

Preferred Athlete Levels
Beginner, Intermediate
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Evergreen, CO
United States