Why Strength Comes Before Conditioning
Most athletes arrive wanting to be fitter. Nine times out of ten, what they actually need first is to be stronger.
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Performance coaching for athletes and workplace teams. Evidence-based support, built in Yorkshire and delivered worldwide.
The Coach

Jack Daysley · Founder & Head Coach
Jack Daysley built Inner Athlete on a simple belief: every athlete is carrying more strength, more speed and more power than they’ve ever been shown how to use.
A qualified S&C coach with a BSc (Hons) in Strength and Conditioning from York St John University, Jack works from a private facility in Yorkshire: no crowds, no queues, no guesswork. Just deliberate, evidence-based training for boxers, fighters, rugby players and the next generation of youth athletes.
“Every athlete has another level. My job is to take you there, and prove it with numbers.”
The Facility
One space, one purpose. Sprint track, sleds, racks and a full free-weight arsenal, reserved for the athletes who train here. No queues, no crowds, no waiting for a bar.
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The floor
Session in motion
The mark
Coached, every repThe Programmes
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WORLDWIDE · BESPOKE + READY-MADE
Individual coaching built around your sport, schedule and season, with programming, video feedback and accountability. Standalone strength and conditioning plans are also available, including youth development options.
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Athlete-grade performance coaching for workplace teams. Practical sessions and lasting systems that improve movement, posture, energy and focus across the working day.
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In-person testing that turns performance into useful numbers. Understand where you stand, identify the priority, and leave with a clearer direction for what to train next.
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For Business
Your team spends eight hours a day in a chair, and their bodies keep the score: stiff necks, dead posture, energy gone by 3pm. We bring the training floor into your workplace: posture, movement and recovery, coached the way we coach athletes. Sharper focus, fewer aches, and people who finish the day with something left in the tank.
Who We Train
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Boxers and MMA athletes preparing for the hardest nights of their lives. Power, engine and durability for fight camp and beyond.
Collision-sport athletes who need to be strong at speed. Win the contact, dominate the last twenty minutes.
Young athletes developed properly, with patient, long-term coaching that builds the foundation everything else stands on.
You don’t need a fight date to train with intent. Get stronger, move better and feel more capable than you thought possible.
Proof
Not your ordinary training programme.
/ Featuring Harry Powell · Professional boxer
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Your Move
Book a free consultation from anywhere. Tell us your sport, your goal and your date. We’ll build the rest.