About

Hi, I'm Jack

I have been coaching in the City of London since 2011. It started in person, one to one, took in group coaching, boxing classes and corporate fat loss seminars along the way, and expanded into online coaching from there. What I do is help people get leaner, stronger and fitter without it taking over the rest of their life.

Most of the people I train have demanding jobs, a social life they would rather keep, and a body that has drifted further than they are comfortable with. That is a solvable problem, and I have spent a long time solving it.

Jack Maroni in the studio

The short version

Where it started

I struggled with my weight growing up. Then I found boxing, competed from eleven until I was eighteen, and somewhere in there everything changed. Not just the weight. My confidence, the way I carried myself, and what I thought I was capable of.

I stepped away from the competitive side at eighteen but kept training in the sport into my late twenties, still pushing to see what I could do with it.

That is the part that stuck, and it is why I do this job. The physical change is the easy bit to measure. It is rarely the bit that matters most to someone once they get there.

I went on to study Sport and Exercise Science at university, started out on a commercial gym floor in 2011, and went my own way in 2013. I have clocked over 10,000 hours of sessions with real people, with a variety of goals, ever since.

Jack before and after his own 16kg transformation

Practising what I preach

My own transformation

I wanted to lead by example, and to show that I have been through the same transformation, with the same struggles, as plenty of the people I coach. It had been a while for me, so I did the photoshoot to take it one step further.

I did what I ask clients to do. I hired a coach and handed over the decisions, because I am a firm believer that to get the best results you need to be accountable to someone. Athletes do it. The rest of us should too.

I lost 16kg on the same phased approach you would follow with me, in one of the busiest years I have had. I do not ask clients to do anything I have not done myself.

Jack coaching a client through a lunge

What to expect

How I coach

Whatever you end up doing has to survive your actual week. The late finishes, the travel, the stretch where work takes over and three sessions become one. Most plans make no allowance for any of that, which is the single biggest reason most plans do not last.

So your plan gets built for someone with a life, not someone with an empty calendar. That is not a compromise. It is the only version that works.

What I will do is teach you properly, so you understand why you are doing what you are doing rather than working through a list. And I will hold you to it, because that is the part almost nobody manages on their own.

★★★★★

"My husband and I have been training with Jack for almost five years. He recently attended our wedding. He is always personable and professional."

Corinne H

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