All photography provided by Maggie Holmgren

BackGround

Jacks Boxing Gym actually started over a decade ago. Jack Mook is a war veteran with the 82nd Airborne, and career detective with the City of Pittsburgh. Jack is the owner and head coach of Jack’s Boxing Gym and a proud partner in the Western Pennsylvania Golden Gloves franchise, helping develop and promote amateur boxing throughout the region.

He is a USA Boxing–certified coach and official through USA Boxing, bringing nationally recognized standards of training, safety, and competition to every athlete who walks through the doors.

With years of hands-on coaching experience, Jack is passionate about building strong fundamentals, discipline, and confidence—whether you’re stepping into the ring for the first time or preparing for sanctioned competition. His leadership and involvement at the regional level ensure Jack’s Boxing Gym stays deeply connected to the sport and its future.

The mission

At Jack’s Boxing Gym, we train hard—because real results come from real work.

We bring authentic boxing training to Pittsburgh that builds strength, confidence, and self-discipline through grit, accountability, and consistency. Our workouts are challenging, high-energy, and designed to push you past your comfort zone—physically and mentally.

But no one does it alone. We foster a tight-knit, supportive community where effort is respected, progress is earned, and everyone—regardless of experience—shows up to work and support one another. Whether you’re here to get in the best shape of your life, learn self-defense, or compete in the ring, you’ll find a gym that demands your best and has your back every step of the way.