Beginner → Pro
Boxing
The foundation: footwork, the jab, head movement and real defence, built from the ground up. The fastest fitness you'll ever earn.
Private martial arts & fitness · Hellerup
38 yearsin the corner.Now in yours.
Harold Clark coaches boxing, Muay Thai, kung fu and Tai Chi from a private gym in Hellerup. One coach, one focus, your goals — no crowds, no queues for the bag.
New York–trained · 38 years international experience · Studio on Strandvejen 70
The coach
One coach.
Thirty-eight years.
Your corner.
Harold Clark grew up around the gyms of New York and has spent nearly four decades coaching fighters and everyday people across the world. Today he trains out of his own private studio in Hellerup — a room built for focus, not foot traffic.
You won't share him with a class of thirty. Every session is read on the day, shaped to your body and your level, and pointed squarely at where you want to get to.
— Harold Clark, Head Coach
Read Harold's story38
Years in the ring
6
Disciplines taught
1:1
Private by default
DK
Hellerup studio
What you can train
Six disciplines,
one standard.
From the first jab to the 24-movement Tai Chi form — pick a path, or mix several. Every one is taught with the same attention to detail.
All levels · Competition
Kickboxing
Hands and feet woven into fast combinations — sharp for coordination, explosive fitness and timing, with a genuine path to competition.
Intermediate → Pro
Muay Thai
The art of eight limbs: fists, elbows, knees, shins and the clinch, taught with the ring-craft and respect the discipline demands.
All levels
Kung Fu
Traditional and eclectic — White Crane, Dragon style and Wing Chun. Forms and flow that sharpen balance, sensitivity and close-range control.
All ages & levels
Tai Chi
The 24-movement short form with chi gong and breathing in motion — a restorative practice that builds quiet strength and a clearer head.
All levels
Strength & Conditioning
Functional weights, body-tone and cardio, programmed around your goals to back up everything else you train — never a copy-paste plan.
In session
This is what an hour
in the corner feels like.
No mirrors-and-machines routine. Real work on the bag, the pads and the bike — coached rep by rep, at a pace set to you. The hour goes fast; the results don't.
Why private
A gym built around you, not a timetable.
Most studios sell you access. Harold sells you his attention. The difference shows up in your technique, your fitness and how fast you actually improve.
Total focus
It's you and the coach. Corrections happen in real time, every rep.
Tailored, every session
Programming shaped to your body, level and goals — never a copy-paste plan.
All levels welcome
Complete beginner or competing pro, you start exactly where you are.
Your schedule
Train mornings, evenings or weekends, by appointment, without the queue.
Ways to train
Solo, with your people, or for your company.
1:1
Personal Training
Just you & Harold
Every session built around your body, your level and where you want to get to. The fastest, most direct way to real progress.
2–6
Private Group Bootcamp
Friends, partners & teams
Small private groups that push each other, share the energy and keep each other honest — without ever feeling like a crowded class.
B2B
Corporate Fit Training
Companies & teams
Sharper, healthier teams. Tailored sessions that keep your people moving, focused and energised — on-site or at the gym.
In their words
People who train here.
Came for fitness, left with real skill
“I came in to get fit and left with skills I never thought I'd have. Harold reads exactly what you need on the day and pushes you to precisely the right point.”
M
Mette L.
Boxing & Conditioning · 2 weeks ago
Decades of coaching, and it shows
“Nearly forty years of coaching shows in every correction. My technique changed more in one week with Harold than in a year anywhere else.”
D
Daniel R.
Muay Thai · 1 month ago
The private gym is the difference
“No waiting, no crowds, total focus. It's just you and a coach who genuinely cares whether you improve. I look forward to every session.”
S
Sofie K.
Personal Training · 1 month ago
Your first session is on the house
Step into the corner.
Book a free trial session, meet Harold, and feel the difference a private gym makes — no pressure, no contract.