Ashley Calhoun
Personal Trainer
NASM CPT
Strength and conditioning for everyday goals and everyday people.
Real people, not stock models
Meet the ONE Boulder Fitness team — the people are the reason.
ONE Boulder Fitness is staffed by named, credentialed people — nine certified personal trainers (including owner Karie Kerner, who still trains members most days), a resident Doctor of Physical Therapy, a resident Registered Dietitian, co-owner Kyle, and Bucky, the three-legged club dog. Woman-owned, downtown Boulder, and nobody wears a uniform.
Certified trainers
Your coaches.
Eight here, plus owner Karie Kerner below — nine certified trainers in total.
Julia Codling
Personal Trainer
NASM CPT
Women’s fitness and nutrition — confidence through real strength.
Cara Hoving
Personal Trainer
NASM CPT · Corrective Exercise
Kettlebell, TRX and Animal Flow; movement that carries into life.
Jesse Levine-Spound
Personal Trainer
ACE CPT
Corrective and mind-body training for durable, pain-free movement.
Peter McIntosh
Personal Trainer
NASM CPT
Boulder native who lost 50 lbs here — now coaches beginners with patience.
Joe Robbins
Trainer & Nutrition Coach
NASM CPT · Nutrition
Powerlifting and anti-fragile, age-well strength.
Tammy Saurette
Group Fitness & Yoga
AFAA CPT
35+ years teaching; cancer-survivor and all-levels fitness.
Tim Sroka
Personal Trainer
NASM CPT
Sports performance and athletic strength development.
Resident experts, on-site
A physical therapist and a dietitian — down the hall.
Two credentialed practices operate inside the club: Atomic Physical Therapy and ActivEnergy Nutrition.
Dr. Emma Stevenson
Resident Physical Therapist · Atomic PT
DPT
On-site sports rehab — climbing and running injuries, dry needling.
Emily Copeland
Resident Dietitian · ActivEnergy
MPH, RD
On-site sports nutrition, performance and healthy-aging counseling.
Ownership & morale
The people who set the tone.
Both owners are in the building most days. It’s the reason there’s only one club.
Karie Kerner
Owner & Personal Trainer
NASM CPT · Feldenkrais
Woman-owned: Karie came in as Glen Marshman’s client, spent two decades on this floor, and now owns the place. Still training members most days.
Kyle
Kyle
Owner & General Manager
ON THE FLOOR, DAILY
Started at this front desk in 2010. Karie called him back years later — first to run the club, then to own it with her. Photo coming.
Bucky
Club dog
THREE LEGS · ONE SPEED
She has three legs, she sleeps in physically improbable positions, and she greets you like you’ve been gone a year.
Roster and credentials are being confirmed with each team member ahead of launch. Kyle’s portrait is on the way, and Dr. Emma Stevenson’s photo above is a placeholder until her real portrait is in.
Come meet us in person.
Book a free consult or claim a day pass — you’ll be greeted by name.