Built for SeriousBaseball Players
UpperDeck Training exists for athletes who want more than reps. We build programs around your data and coach you toward real, measurable development.
What UpperDeck Training Is
UpperDeck Training is a baseball performance facility in Sanford, Maine, dedicated to helping athletes maximize their potential through elite training programs that blend hands-on coaching with metric-driven technology.
We are not a general fitness gym. Everything here is built for baseball, the strength development, the speed work, the hitting program, and the technology we use to measure it all.
Our Summer 2026 programs are built around two pillars: Strength & Conditioning, which develops the physical tools every baseball player needs, and Hitting Development, which builds the swing mechanics, outputs, approach, and mindset required to perform in-game, not just in batting practice.
Every program begins with an assessment. The data we collect on Day One becomes the foundation for everything that follows. That is how we ensure the program is built for you, not a version of you we assumed before you walked in.
How We Think About Development
Individualized Programming
No two athletes are the same. Your assessment data determines your program. We do not hand you a template, we build you a plan.
In-Game Results
The goal of every training session is improved in-game performance. Practice looks different from games, we train athletes to perform when it counts.
Mental Performance
Coach Jack holds a Mental Performance Mastery certification. Approach, routine, and mindset are part of every hitting program. Physical tools alone are not enough.
Peer Culture
Small groups are intentional. Training alongside peers builds accountability, competition, and a culture that pushes everyone to develop faster.
Continuous Measurement
The baseline assessment is just the start. We re-test regularly so progress is not a feeling, it is a number.
Hands-On Coaching
Technology tells us what is happening. Coaching tells us why and fixes it. Both matter. Jack is on the field for every session.
Ready to Get Started?
Book your assessment and find out what UpperDeck Training can build for you.
Summer 2026 programs, Sanford, ME