Athlete setting up a heavy trap bar deadlift beneath the Inner Athlete wall lettering

HighPerformanceBeyond Sport

Performance coaching for athletes and workplace teams. Evidence-based support, built in Yorkshire and delivered worldwide.

The Coach

Forged in Yorkshire.

Jack Daysley crouched at the side of a session, coaching an athlete through box work

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.”
  • EducationBSc (Hons) S&C, York St John University
  • FacilityPrivate performance gym, Yorkshire
  • MethodEvidence-based · Tested · Individualised
  • ReachYorkshire in person · worldwide online

The Facility

A private arena.

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.

Swipe the space

The Inner Athlete facility: branded black wall, racks, sled and red sprint trackThe floor
Athlete mid trap bar deadlift, motion blurred under the gym lightsSession in motion
The giant red Inner Athlete A mark painted across the facility wallThe mark
Jack Daysley coaching an athlete through an air bike effort in front of the A muralCoached, every rep

The Programmes

Train like it matters.

Swipe the programmes

WORLDWIDE · BESPOKE + READY-MADE

Online Athlete Coaching

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.

Explore online coaching

ON-SITE + ONLINE

Corporate Wellbeing

Athlete-grade performance coaching for workplace teams. Practical sessions and lasting systems that improve movement, posture, energy and focus across the working day.

Explore corporate wellbeing

YORKSHIRE · IN PERSON

Performance Testing

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.

Explore performance testing
Inner Athlete coaching, fists raised after a rep

For Business

Corporate
Athletes.

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

Built for the ones
who show up.

Swipe to find yours

Combat

Fighters

Boxers and MMA athletes preparing for the hardest nights of their lives. Power, engine and durability for fight camp and beyond.

Contact

Rugby & Field

Collision-sport athletes who need to be strong at speed. Win the contact, dominate the last twenty minutes.

Youth

Next Generation

Young athletes developed properly, with patient, long-term coaching that builds the foundation everything else stands on.

Everyday

Everyday Athletes

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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From the Journal

Read the Thinking.

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Your Move

You’ve got more in you.
Let’s go find it.

Book a free consultation from anywhere. Tell us your sport, your goal and your date. We’ll build the rest.

Book a Free Consult