Train · Group fitness

Classes & group fitness in downtown Boulder — small rooms, real instructors.

ONE Boulder Fitness offers group fitness and yoga in a small, welcoming downtown setting — led by experienced instructors, including 35-plus-year veteran Tammy Saurette. Great if you like the energy and accountability of training with others without a big-box crowd. Ask about the current schedule at the front desk.

What you'll find

Yoga & mobility

Move well and stay supple — classes that complement your training.

Group strength & conditioning

Coached group sessions with the energy of a class and real form checks.

Small & welcoming

The "sweet club" feel — no crowds, no intimidation, all levels.

Prefer more individual attention? Small-group personal training gives you coached programming in a tiny group, and 1-on-1 training is fully tailored to you.

Common questions

Classes, answered.

Are classes included with membership?

Group fitness options are part of the club experience — ask about the current schedule and any specialty classes at the front desk or your consult.

Are classes beginner-friendly?

Yes — instructors scale for all levels, and the room is famously welcoming.

Do you offer yoga?

Yes — yoga and mobility are part of the group offering, led by experienced instructors.

The studio

The studio, upstairs from the floor. Small groups, familiar faces, nobody watching the clock for you.

Try a class on us.

Claim a free day pass and check the current schedule.

Claim a free day pass Ask about the schedule