Driving performance for two decades
The ANNEX was built around the goal of providing its athletes and members with the best possible opportunity to grow and enrich their lives through the pursuit of performance training and Fitness.
.webp)
Expert Coaching at the Highest Level
Our coaches aren't rotating staff — they're experienced professionals who have been with ANNEX for years and have worked with athletes at the highest levels. They bring a deep commitment to their craft, staying current with the latest in training and performance science so that what you get isn't just experienced coaching — it's constantly evolving, best-in-class coaching.
Goal-Driven, Results-Based Training
Everything at ANNEX is driven by outcomes. We use the right blend of proven training principles and objective performance data to build programs that move the needle on what matters most to each athlete and client. No guesswork, no generic programming — just a clear, measurable path from where you are to where you want to be.
Environment That Raises Your Standard
Who you train with matters as much as how you train. At ANNEX, you're surrounded by like-minded athletes and clients who hold themselves — and each other — to a high standard. That culture of accountability and excellence isn't something we manufactured. It's something our community built over nearly two decades, and it's what keeps our athletes coming back and continuing to grow.
"Nearly twenty years. Countless athletes. One standard that never changed."
Select one of our locations
A program for everyone.
Pick your path :
.webp)
.webp)
Questions? We have the answers!
Where can I find sports performance training in Chatham NJ?
Annex Sports Performance offers top-rated sports performance training in Chatham, serving youth, high school athletes, and adults from across northern NJ and Summit.
Are there fitness classes for busy professionals in Chatham?
Yes, our Adult Fitness classes are designed for busy professionals and parents looking for flexible, effective workouts with proven results.
How does sports medicine support recovery at Annex?
Our team works closely with those needing post-rehab fitness, using sports medicine principles and custom training for optimal recovery and long-term movement gains.
How do goal-driven athletes train at the Annex?
With individualized programs, regular assessments, and ongoing accountability, goal-driven athletes experience faster progress and measurable results.
What results can I expect from joining Annex Sports Performance?
Members achieve improved performance, confidence, injury resilience, and a stronger, more functional body—read our reviews to see success stories.
What makes Annex Sports Performance different from regular gyms?
We combine expert coaching, a supportive community, and science-backed training methods for goal-driven results beyond what regular gyms provide.
Who should join the youth speed and agility programs?
Our youth programs are perfect for kids, teens, and high school athletes looking to enhance speed, agility, and injury prevention in a positive environment.
Do you offer post-rehab fitness options near Summit NJ?
Absolutely. We specialize in post-rehab and recovery focused training for clients in Summit, Chatham, and throughout the area.
Is there a specialized gym for high school athletes in Chatham?
Yes, Annex Sports Performance provides targeted high school athlete training programs that develop speed, strength, and injury prevention.
How do I get started?
Simply schedule your introductory to see if we're a good fit. We'll guide you into the best program for your needs.