Coach · Co-owner · The Box Barnsley

John Firth

Hi, I'm John! I'm a Level 3 Personal Trainer with a BEd (Hons) in Physical Education, one of the owners of The Box, and I lead our F-55 class for over 55s.

I come from a rugby background, so I've always loved training as part of a team. I joined The Box three years ago and fell in love with the training, the vibe and the energy I get every time I walk through the door.

I'm the fittest I've been in years. The Box has been my life saver, and I love it so much that I decided to buy part of the business.

"I love a challenge, and my key word is perseverance."

Coaching style

I love general fitness, circuit training and workouts that put you in teams. Expect plenty of burpees and push-ups, a challenge every session, and lots of encouragement to keep going when it gets tough.

Catch John in class

John leads F-55, our specialist class for over 55s getting into fitness, focused on strength, balance and mobility for everyday life. He also loves our Cardio classes, and Sweat Saturday is his favourite. Grab a team and come and find him on a Saturday morning.

Outside the gym

Random fact: I came runner-up in the Northern Junior Barefoot Waterskiing Championships when I was 15!