Read the person, not the plan
No two bodies, days or goals are the same. Harold coaches what's in front of him — adjusting load, pace and focus session by session.
About · Coach Harold Clark
From the gyms of New York to a private room in Hellerup.
Thirty-eight years of coaching across the world, distilled into one studio and one promise: train with someone who has genuinely done the work, and you'll get to where you always wanted to be.
38
Years coaching
NY
Where it started
6+
Disciplines
The New York years
Harold came up around the boxing and martial arts gyms of New York — the kind of rooms where the heating barely worked and nobody handed you anything. That's where he learned the trade: long hours on the bag, in the ring, and under coaches who measured you by your work, not your talk.
Over the decades that followed he trained internationally across boxing, kickboxing, Muay Thai, several styles of kung fu and Tai Chi — coaching complete beginners, busy professionals and competitive fighters alike.
The craft
Few coaches genuinely span the striking arts and the internal ones. Harold does — and that range is the point. The explosive power of Muay Thai and the patient breathing of Tai Chi aren't opposites to him; they're two ends of the same practice.
It means he can meet you wherever you are. Want to hit hard and get fit? Start on the bag. Want to move better, breathe easier and find some calm? Start with the form. Most people, in time, do both.
Why Hellerup, why private
Today Harold runs his own private gym on Strandvejen 70 in Hellerup. No membership crowds, no waiting for equipment, no instructor splitting attention between thirty people. Just a room set up exactly for the work, and a coach who is fully yours for the hour.
It's a deliberately different offer — closer to having a world-class coach in your corner than buying a gym pass. For a lot of people, it's the first time training has actually fit their life and moved as fast as they hoped.
How Harold coaches
Four things that don't change.
Fundamentals before flash
Stance, balance, breathing and defence come first. Get those right and everything — power, speed, confidence — follows.
Respect the discipline
Boxing, Muay Thai, kung fu and Tai Chi each carry their own history. They're taught with the craft and respect they've earned.
Train the mind too
Confidence and self-empowerment aren't a side effect here — they're part of the work. You leave standing a little taller.
Meet Harold in person.
The best way to understand the difference is to feel a session. The first one's free.