Business Details
24 Years
experience
Your Trusted Running Store & Fitness Partner in Acton, MA
Founded in 2002, On Your Marx Running & Fitness has dedicated itself to fostering a community centered around running and injury prevention. With two decades of experience, our team combines expertise in footwear technology and gait analysis to provide personalized solutions for athletes of all levels. Our mission extends beyond retailwe partner with local physical therapy offices, schools, and fitness centers to educate and empower individuals through data-driven shoe recommendations and biomechanical assessments.Led by USATF-certified coach Mark Coddaire, our staff includes physical therapists, exercise science professionals, and competitive athletes who bring deep industry knowledge to every customer interaction. Through initiatives like our summer running camps and free community gait analysis events, we strive to make running accessible, sustainable, and injury-free for all.
Services
Video Gait Analysis
Shoe Technology Presentations
Running Camps
T-shirt Printing
Race Management
Details
- Year established: 2002
Highlights and features
- We offer 22 years of specialized expertise in running biomechanics and footwear technology.
- Our free video gait analysis uses frame-by-frame technology to prevent injury risks.
- Certified coaches and physical therapists staff our locations for expert consultations.
- We partner with local physical therapy offices and schools for community education.
- Our research-backed shoe recommendations have evaluated over 9,000 runners.
Services
Video Gait Analysis
Our advanced video gait analysis evaluates your running mechanics frame-by-frame to identify pronation, supination, or neutral gait patterns. This technology helps determine optimal footwear choices that reduce injury risks while improving performance. Ideal for runners, walkers, and athletes experiencing joint pain or balance issues.
Running Camps
Summer running camps provide structured training for ages 10-14, combining technical instruction with endurance development. USATF-certified coaches emphasize proper form, injury prevention, and race strategy. Participants receive personalized feedback and access to local trails for practical application of training principles.
Shoe Technology Presentations
Interactive presentations explain shoe construction, material density, and stability features to help customers make informed purchasing decisions. We demonstrate how different technologies affect gait mechanics and injury prevention. Available for schools, PT offices, and community groups.
T-shirt Printing
Custom T-shirt printing services support race teams, community events, and local organizations. We offer design assistance and bulk order pricing while maintaining commitment to quality and quick turnaround times for event-specific apparel needs.
Race Management
Comprehensive race management solutions include event planning, timing systems, and participant support services. Our experience organizing local races ensures smooth execution from course design to post-event logistics, prioritizing safety and participant satisfaction for competitive running events.
People
Mark Coddaire
Owner & Founder
With 22 years in the running industry, Mark is a USATF Level 1 certified coach who has developed national-caliber athletes. He pioneered our video gait analysis system and leads community education initiatives.
Asher Brownson
Head Coach
An Ironman competitor and former collegiate athlete, Asher brings expertise in endurance training and youth development. He specializes in creating confidence-building programs for young runners through personalized coaching techniques.
Questions
What does your video gait analysis involve?
Our 10-15 minute analysis uses video technology to evaluate your running mechanics frame-by-frame while testing different shoes. This identifies injury risks and determines optimal footwear choices.
Are running camps suitable for beginners?
Yes, our summer camps accommodate all skill levels ages 10-14. Certified coaches provide personalized instruction focusing on proper form, injury prevention, and endurance development.
Do you offer shoe recommendations for injury recovery?
Yes, we specialize in footwear solutions for common injuries like plantar fasciitis, shin splints, and joint pain through our biomechanical assessment process.
Can I schedule group presentations?
We provide free educational presentations at local schools, PT offices, and community centers about shoe technology, gait mechanics, and injury prevention strategies.
What running events do you support locally?
We organize the Concord Turkey Trot and partner with local race directors to provide management services, timing systems, and participant support for running events.
Reviews (7)
Anna Olsen
Oct 20, 2021
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Super friendly and helpful staff got me set up with arch support shoes so I can kick my plantar fasciitis and get back to running. He first evaluated my walking gait and used that information to find shoes that will help stabilize my pronating foot. I wanted to get 2 pairs so both were 15% since I was buying both. So, so much better than buying online.
Benjamin Schmitz
Sep 27, 2021
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Ben was amazing! Very knowledgeable and helped me get the right shoe, all while running (haha, "running", get it?) the store by himself helping several other customers simultaneously. 5-star service!
James McCabe
Aug 29, 2021
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Very friendly and helpful. Great place to go whether you know exactly what you need, or if you’re like me and you need lots of advice. The gait analysis was really helpful too. Best part: I didn’t have to drive into Boston... much more mellow out here in the burbs. 🙂
Bonnie Gibb
Aug 21, 2021
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Compliments to Marx Running &Fitness Center! Mark and his Team provide great customer service. Over the years has helped me to find the right sneakers that help prevent my knee pain. And they even deliver!
Marshall Horwitz
Jul 31, 2021
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Mark Coddaire is the real deal!! He really knows his products and can select the footwear right for YOU. I came here after my sneakers got soaked in yesterday's torrential rains. Since I am from out-of-state, I looked at Google reviews for a running store in the Acton area. The reviews emphasized Mark's knowledge and his honesty. I can state unequivocally that Mark looks out for the customer and doesn't upsell you. Now this might sound a bit strange, but it is true. I brought my old sneakers with me, and Mark could tell why they were causing me issues. And the footwear I had was from a respected
Megan Murphy
Jul 26, 2021
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We are new to town and my fianc needed a new pair of running shoes so we decided to give Marx running a try. We scheduled an appointment for a gait analysis and the process was very interesting! The young woman who helped us was extremely knowledgeable in showing us what she was looking for in the gait analysis shown on the computer and explained why she recommended certain shoes over others. Her passion and knowledge gave us total confidence that we were purchasing the right pair. An overall great experience here--we will be back!
Ryan Sullenberger
Apr 20, 2021
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Small shop but they've got a good selection of running/walking shoes. Very friendly and helpful staff!
