Premier Personal Training in Sudbury, MA
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About Us
Duddy Performance is a premier 1:1 personal training and private athletic coaching facility in Sudbury, MA. Over 50% of our athletes and clients work directly with a dedicated coach in individual 1:1 personal training programs, alongside specialized small group athletic training.
WHAT WE OFFER
Expert coaching across every stage of your fitness journey.
1:1 Personal Training & Nutrition Coaching
Fully customized programming and one-on-one coaching built around your goals and schedule.
Personal Training →Nutrition Coaching →
Small Group Personal Training
All the energy of a group class with the personalized attention of a private session.
Small Group Personal Training →
Youth Sports Performance
Speed, strength, and agility training that gives young athletes the foundation to excel in any sport.
Youth Sports Performance →
Hyrox Training
Race-specific prep, functional fitness, and endurance work to get you across the finish line strong.
Hyrox Training →
DON'T TAKE OUR WORD FOR IT
What Our Members Have to Say
★★★★★
"I was hooked from the first visit at DP. Not only did I get a great workout, the coaches made me laugh, there was a community feel, and most importantly, I had fun! In the era of snatched waists and BBLs (not to be confused with the eras of Buns of Steel and Jazzercize) DP is an oasis where exercising truly is a celebration of movement, not a form of punishment or box to check off. The coaches are genuinely good people and make me feel comfortable on my fitness journey. So glad I found DP"
Cara B.
★★★★★
"My 12 yr old daughter did group sessions at Duddy Performance and thoroughly enjoyed the sessions! She was able to get stronger, but also learn about how to work out via the instruction. As a youth it was inspiring for her to see results and get excited about being able to lift more weight and other milestones. Would highly recommend for all ages!"
Alicia L.
★★★★★
"I have been attending small group training classes at Duddy Performance consistently for the past 6 months and I kind of feel like a new person. Once active, motherhood took me out both physically and mentally for a number of years. My joints ached, I routinely woke up sore and I no longer felt like the woman who could rise to any challenge that was thrown at me. Late last year I decided I needed to make a change. I Googled "where to lift weights near me?" and found Duddy Performance.The gym name was familiar because Duddy is a sponsor for our Elementary Fun Run - love the community involvement! I connected with Liza and chatted and felt very comfortable from the get-go. The first 2 weeks were hard - I was sore, but I kept coming back. The better I felt, the more classes I wanted to attend and fast forward to today, I'm not about to stop. I feel stronger, fitter and more mentally healthy than I have in nearly a decade and I owe it to Duddy, their caring team and their wonderful community."
Mallorie S.
★★★★★
"Duddy Performance is a very special place. The coaches are incredible. They get to know you, your strengths and weaknesses and remember the small details about injuries (even some I forget about!). They watch carefully to make sure you don't hurt yourself and push you when you need it. They're truly talented, inspirational, funny and seem to truly love what they do and who they do it for. They are the biggest part of what make this place so amazing. As for the results--I've been working out here for almost two years and my body is 100% different than when I started. I'm strong (and I'm kinda proud of that)! I'm also clumsy, but I've been able to catch myself in the middle of what could have been an ugly fall on the ice or a wet floor. That's huge! I also seem to be healing injuries that were due to weaknesses. Highly recommend Duddy. Great community. Great coaches, and great opportunity to transform not only your body but how you feel about it."
Shanti S.
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Train Like It Matters at Duddy Performance
We're dedicated to empowering athletes and fitness enthusiasts of all ages to unlock their full potential. Through expert coaching, personalized programs, and a supportive community — we meet you where you are.
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Duddy Performance
33 Union Ave
Sudbury, MA 01776
Phone: 978-917-9091
Hours of Operation:
Mon–Fri: 5am – 7pm
Saturday: 7am – 1pm
Sunday: 7am – 1pm
© 2025 Duddy Performance. All rights reserved. | Privacy Policy | Social Media Disclaimer
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Your First Step
Starts Here.

Fill out the form below and a member of our team will be in touch to match you with the right program, coach, and next step.

Free consultation — no commitment required
We'll match you with the right coach & program
Based in Sudbury, MA — in-person & online options