Business Details
14 Years
experience
Your Trusted CrossFit Gym in Lowell, MA
CrossFit Merrimack has been dedicated to transforming lives through fitness since 2012. Our mission is to empower individuals of all fitness levels with expert coaching, personalized programming, and a supportive community. We offer CrossFit classes, specialized running strength training, and personal training in one of the largest CrossFit facilities in the Northeast. Our team of certified coaches, including 2008 Olympian Anna Willard Grenier, tailors workouts to meet individual needs while fostering a culture of accountability and growth. Since opening in Lowell, Massachusetts, we have built a reputation for excellence in functional fitness, injury prevention, and athletic development.Our 6,000-square-foot facility is custom-designed to optimize performance, featuring dedicated spaces for weightlifting, gymnastics, and endurance training. We prioritize long-term health and sustainability, helping members achieve physical and mental resilience through evidence-based training methodologies. Our community-driven approach ensures every athlete receives personalized attention, making fitness accessible and enjoyable for all.
Services
CrossFit Classes
Running-Specific Strength Training
Personal Training
Foundational Training
Weight Loss Programs
Strength and Muscle Gain
Health and Longevity
55+ Fitness
Olympic Weightlifting
Community Support
Details
- Year established: 2012
Highlights and features
- We offer specialized running strength programming led by a 2008 Olympian.
- Our 6,000-square-foot facility is custom-built for functional fitness excellence.
- Two free foundational training sessions for all new members.
- Expert coaches provide personalized attention in every class.
- Community-focused environment fosters long-term motivation and accountability.
What people say
Great facility
Better people
Best workouts
Hooked already
Motivating and inspiring
Services
CrossFit Classes
Our CrossFit classes combine constantly varied functional movements with high-intensity workouts to improve overall fitness. Each session is scalable for all skill levels, focusing on strength, endurance, and mobility. Expert coaches provide real-time feedback to ensure proper form and maximize results.
Running-Specific Strength Training
This program integrates running mechanics with strength training to prevent injuries and enhance performance. Led by a 2008 Olympian, sessions include speed drills, power exercises, and biomechanical analysis to optimize running efficiency for athletes of all distances.
Personal Training
Customized 1:1 training programs address individual goals, whether weight loss, muscle gain, or athletic performance. Sessions focus on movement fundamentals, weightlifting techniques, and personalized progress tracking to ensure measurable improvements in strength and conditioning.
Foundational Training
New members receive two free 1-hour foundational sessions covering CrossFit basics. Coaches teach proper form for gymnastics, weightlifting, and metabolic movements in a private setting to build confidence and ensure safe progression into group classes.
Community Support
Our community-driven approach creates a supportive environment where members motivate each other. Regular group challenges, social events, and peer encouragement foster long-term commitment to fitness goals while making workouts enjoyable and socially engaging.
People
Bob Grenier
Owner/Head Coach
Bob Grenier co-founded CrossFit Merrimack with a vision to create a community-focused fitness space. As head coach, he emphasizes proper technique and progressive training to help athletes achieve sustainable results.
Anna Willard Grenier
Running Coach
2008 Olympic Track athlete Anna Willard Grenier brings elite-level expertise to our running-specific strength program. With a decade of professional running experience, she specializes in injury prevention and biomechanical efficiency for runners.
Tyler Mahoney
Coach
Coach Tyler Mahoney delivers dynamic CrossFit instruction with a focus on functional movement patterns. He works closely with members to refine techniques and build strength through progressive programming tailored to individual capabilities.
Pat Smulligan
Coach
Pat Smulligan combines strength training expertise with motivational coaching to help members push past plateaus. His sessions emphasize proper form and incremental progress to ensure safe, effective workouts for all fitness levels.
Kilo
Coach
Coach Kilo brings energy and technical precision to every class, specializing in weightlifting and metabolic conditioning. He prioritizes individualized feedback while maintaining the high-energy group environment CrossFit Merrimack is known for.
Questions
What is CrossFit Merrimack's approach to fitness?
We combine CrossFit methodology with personalized coaching to create scalable workouts for all fitness levels. Our focus is on functional movements, injury prevention, and building a supportive community.
Do you offer beginner-friendly programs?
Yes! New members receive two free foundational sessions covering CrossFit basics. Our coaches provide hands-on instruction to ensure proper form and build confidence before joining group classes.
Are there specialized programs for runners?
Our running-specific strength training, led by 2008 Olympian Anna Willard Grenier, improves running efficiency through biomechanical analysis, power drills, and injury prevention techniques tailored to endurance athletes.
What are the facility hours?
Class times vary daily with sessions starting as early as 5:30 AM and running until 6:00 PM on weekdays. Saturday classes begin at 8:30 AM. Check our schedule for specific details.
How does the community aspect work?
Our members motivate each other through group challenges, social events, and peer support. This community-driven environment creates accountability and makes fitness enjoyable for everyone involved.
