Play Football at Harry Stone Park

My name is KJ Mack, I have over 15 years of playing experience and 9+ years on the sidelines, I’m very passionate about football and have a strong commitment to player development. I’m a former collegiate offensive lineman, I played JUCO ball in Minnesota before finishing up my career at a division 2 school. So far in my coaching career I’ve spent five years coaching at the college level across NCAA Division I, II, and III programs before transitioning to high school football, where I’m now entering my fifth season. I have a wealth of knowledge in both offensive line and defensive line play. I teach from the ground up and really take my time honing my players skills. I’ve helped all of my linemen achieve college scholarships. Im truly dedicated to helping young athletes succeed both on and off the field, using football as a tool to teach life lessons, develop character, and open doors to future opportunities.

"I just started playing football this year and I’ve already learned more with Coach Mack than any other coach I’ve ever had. He breaks things down by position and then builds you from the ground up. Makes working with him super easy and fun.

I’m a Dallas‑based coach specializing in quarterback development, youth athletic training, and speed/agility work. With 6+ years of coaching experience and a CPT certification, I focus on building confident, disciplined athletes through fundamentals, movement quality, and positive coaching energy. I train athletes of all levels — from beginners learning proper mechanics to competitive players preparing for their next season. My sessions are structured, high‑energy, and tailored to each athlete’s goals, whether that’s improving footwork, throwing mechanics, speed, strength, or overall athletic IQ. My mission is simple: build better athletes and even better young men through consistent work, real coaching, and a supportive environment. Let’s get to work. -Coach Alex

"Coach Alex has been a huge blessing for our family. My sons struggled with confidence before we started, and now they walk onto the field with confidence. Footwork, speed, strength and overall understanding of the game have improved dramatically. Alex knows how to teach, motivate, and connect with kids.

With two decades of coaching football, I foster player growth and strategic thinking. I tailor training to unlock potential and instill a passion for the game. My approach blends skill-building with a fun, competitive environment. I was a Strength & Conditioning coach at Stanford University and I was also a Defensive Backs coach at Stanford University. I currently coach on the high school level. I am also a sprint technician/running coach.

"Everett has been a life coach to my son.