M - F : 9am - 5pm


Shari Marshall-Sullivan

I started the high school track and cross country programs that have produced multiple all-state athletes and state champions including Olympic bronze medalist Emma Coburn.

I specialize in personalized coaching and training plans for mountain and trail races as well as road races. My coaching combines what I continue to learn from research, my variety of coaching experiences, and my years of competition. I have helped runners hit PRs in multiple races from 5ks to 50ks!

I love to help runners of all calibers and ages discover their best self by developing individualized training plans to fit their lives and meet their athletic goals. It a very rewarding experience when an athlete trains, improves, and succeeds in their athletic goals.

gO Performance LogoMISSION

We inspire our athletes to learn, exceed expectations, surpass goals, stay active, train with purpose and succeed at all levels and age groups. We provide the medical and performance resources to sustain a healthy lifestyle by promoting and supporting athletic opportunities in the Gunnison valley and beyond.

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CONTACTgO Performance Logo

P: 970.349.5103
F: 970.349.5105
A: 433 Sixth Street
Crested Butte, CO 81224

Monday - Friday : 9am - 5pm

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