Strength. Longevity. Performance for Life.

At Back Bay Fit, cutting-edge testing meets world-class coaching. Unlock peak performance, optimize your health, and build resilience that lasts a lifetime

Expert Guidance

Our industry-leading team includes Boston's best personal trainers, coaches, doctors, and therapists.

Our Core Services

Who We Are

Back Bay Fit is Boston’s premier destination for data-driven fitness and longevity. We combine advanced testing, elite coaching, physical therapy, and world-class facilities to help you build strength, optimize health, and thrive for life.

Strength & Conditioning

From foundational strength to advanced performance training, our programs build muscle, resilience, and functional capacity — so you can look, feel, and perform at your peak.

Personalized Coaching

Our expert trainers design tailored programs based on your goals, your test results, and your lifestyle. Every session is purposeful, effective, and focused on sustainable progress.

Performance Testing

We measure what matters: DXA scans, VO₂ max testing, and metabolic analysis give you a complete picture of your health and performance, providing the blueprint for smarter training.

Physical Therapy & Recovery

Our in-house physical therapy team helps prevent injury, restore function, and accelerate recovery — ensuring you can keep training and performing at your best.

Why Choose Back Bay Fit

At Back Bay Fit, fitness goes beyond workouts. We combine advanced performance testing, personalized coaching, and integrated physical therapy to deliver results that last a lifetime.

Boston’s professionals, athletes, and families trust us because we provide:

Data-Driven Training : Programs built on DXA, VO₂ max, and metabolic testing.
Expert Coaching & Therapy : Elite trainers and physical therapists working together to optimize your performance and prevent injury.
Longevity Focus : Not just short-term gains, but sustainable health, resilience, and vitality.
A Premium Environment : State-of-the-art facilities designed for serious training and recovery.

Performance Tests Completed

Expert Coaches & Therapists

Client Assessments

Clients Transformed

Boston's premium Fitness programs

Our Premier Services

Gym Memberships

Train On Your Terms With Premium Equipment, Custom Programs, and Expert Support

personal training

Experience personalized coaching, state of the art facilities, and results driven methods in the heart of Boston.

Testing Services

VO2 Max Test, RMR Analysis and DXA Scan.

Meet the Experts

Coaches • Therapists • Performance Specialists

Johnny Loreti

Performance coach optimizing health through data-driven training.

Masha Petrova

Women’s coach focused on smart, sustainable transformation.

Danielle Bartlett

Coach empowering women through strength and confidence.

Kyle Mahoney

Doctor of Physical Therapy specializing in sports performance.

Evan Hoffman

Strength coach focused on muscle and performance growth.

Choose your plan

Pricing Package

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$ 4,900

3 Month

40 minutes workout

1 personal trainer

$ 6,900

4 Month

80 minutes workout

3 personal trainer

nutrition program

$ 8,900

5 Month

120 minutes workout

5 personal trainer

nutrition program

24/7 customer service

Client Results

Real Stories. Real Progress.

Joining BBF has been the best decision of my life. In just 12 weeks, I lost 80 pounds and gained back my confidence. The combination of personal training, chiropractic care, and even martial arts classes for my kids makes BBF more than just a gym — it’s a community. The trainers kept me motivated every step of the way, and I couldn’t have done it without their support. BBF is hands down the best fitness facility in Boston!