About us

// Know About us

3 Star CrossFit

3 Star CrossFit opened our doors in July 2017 and although we might be a little biased, we genuinely believe we’ve put together the greatest coaching staff in Middle TN. We can’t wait to meet you where you are along your journey in the sport of functional fitness that we’ve grown to love.

// our owners

The leaders of 3 Star CrossFit

Steve Gillis, Owner

Stevie G. (aka: “Old Man”) has a teacher’s heart. He has been teaching “something” since the age of 16 and trust us, that was a long time ago! His love for CrossFit is contagious so be forewarned– if you spend much time around Stevie G. you just might become addicted to this CrossFit stuff too! He’s also the proud dad of two of our incredible coaches– Kaley & Emily.

Dustin Roberson, Owner

Dustin brings exceptional knowledge of movement patterns and body mechanics to our team. He has a unique ability to help athletes move efficiently while maintaining proper form and technique. Dustin doesn’t just coach good movement—he demonstrates it with precision. His calm, technical coaching style makes complex skills easier to understand, and his attention to detail helps athletes progress safely and confidently. Whether you’re brand new or looking to refine advanced movements, Dustin ensures you move better every day.

// our Trainers

The Trainers of 3 Star CrossFit

Mary terrell

CF-L2 Trainer / Burgener Strength certified / The Gymnastics Course certified / CPR & AED certified

IAN RANDOLPH

Certified CrossFit Trainer (CF-L3) / USAW Sports Performance Coach / Aerobic Capacity certified

Emily Stirling

Certified CrossFit Trainer (CF-L3) / CrossFit Weightlifting certified

Kaley Gillis

CF-L2 Trainer / CrossFit Weightlifting certified / Burgener Strength seminar coach

CARA FREDERICK

CF-L2 Trainer / CrossFit Masters Course certified / CPR & AED certified

Mike Edwards

CF-L2 Trainer / CPR & AED certified Mike is the tall/bald guy around the gym!

Mark Anderson

U.S. Army Veteran / CF-L2 Trainer / USA Weightlifting Advanced Sport Performance Coach

Scott WALTERS

CF-L1 Trainer / CrossFit Judges Course / CPR Certified Scott became a member

CHASE BRUCE

Doctor of Physical Therapy, Certified Strength and Conditioning Specialist (CSCS)

MARK CRAWFORD

CF-L2 Trainer / CrossFit Judges Course / Firefighter / CPR & AED certified

MICHAEL MOORE

CF-L1 Trainer / Michael attended his first CrossFit class in 2019

MARIAH WALSH

CF-L1 Trainer / Mariah first fell in love with CrossFit back in 2012

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