Strength. Teamwork. Confidence.
Gymnastics, Ninja and youth fitness for ages 2 to 18, plus a Fitness Zone for parents, under one 20,000 sq ft roof in Rochester, MN. No contracts.
- Ages 2 to adult
- No contracts
- SafeSport-aligned coaching
Start your family on a positive fitness journey
Whether a child is a multi-sport athlete looking to cross-train or is brand new to fitness, there is a class for them.
More than gymnastics
Small-group fitness for kids. A real gym for you.
Kids’ fitness · Ages 5 to 18
Small-group classes where every kid gets coached
Cross-training, Ninja, kickboxing and powerlifting in groups small enough that form gets corrected and nobody hides at the back. Book online. The first class is $15.
- Cross-training
- Ninja
- Kickboxing
- Powerlifting
Fitness Zone · Adults & teens 14+
Train while they train, for $50 a month
Free weights, squat racks and cardio in a room that overlooks the floor your kids are on. Your first visit is free, there is no contract, and members can bring a friend on a free guest pass.
Families trust us because we have:
Our gymnastics and fitness center is a welcoming, safe place for every level.
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Decades of athletic-industry experience
Coaches who have spent their careers in youth sport, not a franchise playbook.
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An owner who is Southeastern Minnesota's premier gymnastics coach
Valentin Frunzac built ONE around the fundamentals every sport shares.
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Staff trained in CPR and first aid
Every coach on the floor is trained to respond, not just to spot.
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No long-term memberships or commitments
Monthly tuition, cancel with two weeks’ notice, no annual fees.
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Affordable pricing and flexible schedules
Classes from $82 a month, weeknights and Saturday mornings.
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US Center for SafeSport guidelines
A youth-safety standard we follow in every class and practice.
Built by a coach who thinks every kid deserves real training
“Strength, agility, confidence and resilience form the core of all recreational and competitive sports. Developing those fundamentals prepares kids to perform their best, on and off the field, in any sport, for life.”
Outside of organized sports, kids rarely get structured, instructor-led exercise. ONE Athletics exists to change that: classes for ages 2 to 18 regardless of ability or background, with no expensive membership and no lengthy contract, and a Fitness Zone so you can train while you watch.
- Coaches trained in CPR & first aid
- Practice home of Rochester Public Schools gymnastics
- Train while you watch your kids
Fitness has never been more fun
See our reviews on Google
“We have had an amazing experience at ONE. The whole family has learned more about gymnastics while our daughter has been encouraged to pursue her love for the sport.”
“This program allowed him to stay focused and challenge himself. Coach was excellent and we were very pleased.”
“We liked the gym and the class. The front desk was friendly and helpful, and the coach worked well with our daughter; I plan to make this a routine.”
What parents ask before the first class
Still wondering? The front desk answers the phone Monday to Saturday at (507) 258-5588.
Do I need a membership or contract to take a class?
No. There are no long-term contracts, annual fees or service fees. Memberships bill monthly and can be cancelled any time with a two-week email notice.
How do I register?
Create a free WellnessLiving account (or use the ONE Athletics app), sign the forms and add your family. Fitness, Ninja and kickboxing classes book online; for gymnastics, book a placement assessment or call the front desk at (507) 258-5588.
What if we miss a class?
Cancel at least 24 hours ahead and the credit returns to your account for a make-up. Late cancellations and no-shows are not refunded. The make-up policy does not apply to Mini-Hopes or Competitive Team gymnastics.
What ages do you serve?
Parent & Me starts at 2, preschool gymnastics at 4, beginner gymnastics at 6, cross-training and Ninja at 5, kickboxing at 7, powerlifting at 10. The Fitness Zone is open to teens 14+ and adults.
Can parents work out while kids are in class?
Yes. The Fitness Zone ($50/mo individual, $120/mo family) overlooks the gymnastics and Ninja areas during regular business hours. Your first visit there is free for ages 14 and up.
Does the $15 trial class work for gymnastics?
No. The $15 trial is for kids’ fitness classes (cross-training, Ninja, kickboxing, powerlifting) for kids under 14; ages 14 and up get a free first visit to the Fitness Zone. Gymnastics is not booked online: Parent & Me, Preschool and Beginner enroll through the front office with no assessment, and higher levels start with a free placement assessment.
Where do we park?
Free on-site parking at 4173 11th Ave SW in southwest Rochester. Front-desk hours are Monday to Saturday; see the footer for today’s times.
Ready to try a class?
Your first kids’ fitness, Ninja or kickboxing class is $15 (free for ages 14+), with no membership and no commitment. Gymnastics families call the front office, or start with a free placement assessment.