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Head coach greg marshall

Coach Greg

Education and Experience

Coaching Philosophy

Growth first. It's not about where we started, but how far we can go.

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Growth looks different for everyone. For some of us, it's competing for a top spot in our next ultramarathon. For others, it's just understanding how to balance a diet and exercise routine for the first time in our lives. One is not better than the other.

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If you're ready to invest time and energy in yourself, then we're a match. I've more than a decade of experience in distance running and graduate-level education in exercise physiology. I help athletes who want to train with confidence that what they're doing will get them to their goals, rather than spend time developing their own training strategy.

-Greg

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Credentials

Greg Marshall is the Head Coach and Founder of Treeline Endurance, bringing a rare combination of academic training and applied endurance coaching experience. He is a college-level instructor of Human Anatomy and Physiology with graduate education in Exercise and Nutrition Sciences, alongside graduate work in exercise physiology and footwear technology research. His coaching approach is further informed by extensive on-site pacing and crewing experience at premier ultra-distance events, complemented by multiple industry-recognized coaching and nutrition certifications. This background ensures athletes receive training that is scientifically grounded, practically tested, and tailored to the real demands of long-distance performance.

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Media and Writing

Additional Background

2011-2014

Degree
University Name

Education

  • Graduate work in exercise physiology

  • Research work on footwear technology

Certifications

UESCA certification
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Running

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Ultrarunning

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UESCA logo nutrition

Nutrition

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Let’s Work Together

Get in touch so we can start working together.

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Treeline Endurance Head Coach Greg Marshall

I am a runner, a learner, and a coach. I live to explore the outdoors, learn how people adapt to exercise, and to try and inspire the same passion for life and endurance sports that others have inspired in me.

UESCA certification

Running

trainingpeaks coach badge Level 2
UESCA logo ultrarunning

Ultrarunning

stryd coach badge
UESCA logo nutrition

Nutrition

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