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Jon Warren
Head Coach
(BTF Level 2 Diploma)

Jon is a lifelong runner who discovered triathlon after being inspired at London 2012 Olympics. Since then, he has gone on to hone his skills across various distances and become a respected triathlon, multisport and run coach. He brings a determined, but encouraging energy to all of his athletes.

Triathlon, Running, Duathlon, Ultra Events



Sport for Charlotte has been a way to escape, push boundaries and be a part of a  community. She constantly studies to help develop her own methodologies to ensure that sport becomes a lifestyle rather than a short term plan for her athletes.


Triathlon, long distance running and open water swimming


Mark Billyard


Mark is a lifelong swimmer, who loves the water. After watching the Ironman Lanzarote in 2010, he extended that to the bike and run, and his triathlon has gone from strength to strength, with a particular focus on middle and long distance, and a palmarès including 6 world championships. He is a focused, passionate, motivating and systematic triathlon/swim coach, who completed his BTF Level 3 coaching qualification on the High-Performance Coaching Programme (HPCP).


Triathlon: Olympic, Middle & Long Distance
Swimming: Pool & Open Water



Michael Dempster


Michael has been in the world of triathlon for 23 years, from racing elite level at Olympic distance as a Junior through achieving a top 10 finish in his age group at the infamous Ironman Lanzarote to present day trying to qualify for an elite long distance racing license at the age of 38.


Alongside this he has been a strength and conditioning coach, personal trainer and endurance specialist for the last 15+ years and brings an he prides himself on being able to tailor training to all of his clients specific needs – whatever they may be.


Long Distance Triathlon, Duathlon,  Bike Optimisation, Race Day Planning/Preparation

Nick Cull 4 Performance coach


Nick started his endurance sport journey back in 2008 when he ran the Paris marathon as a bucket list achievement of running 26.2 miles. From there Nick just didn’t stop and caught the bug of trying new things and seeing what he could achieve. Before long he'd fallen into triathlon and have competed at all distances since 2010. Nick likes to push his boundaries and see how far he can go with events and challenges with my toughest challenge to date being the Silk Road Mountain Race 2022 through the mountains of Kyrgyzstan. Nick loves the sport of triathlon though and Nick particularly enjoys encouraging new participants as well as being part of the sport from a different side as British Triathlon Technical Official. 


Swimming, triathlon and endurance events.


Gary Burman

Gary discovered triathlon in his mid-30s after retiring from football. After an invite from a friend to compete alongside him at a local triathlon event, Gary quickly fell in love with triathlon. Gary has gone on to represent GB Age Group in Aquathlon, Aqua Bike in Sprint Triathlon at European and World Championships. Gary has a background in Sports Science and his coaching skills are honed from 20 years of teaching experience. Gary has built up an excellent rapport with athletes he has coached, which has inspired them to progress rapidly to their goals.


 Sprint Triathlon, Aquathlon, Aqua Bike, Football, Athletics, Hockey, Basketball.

Chris Myers 4 Performance Physio

Chris Myer

MSc Sports Medicine, BSc (Hons)
Physiotherapy MCSP SRP
BSc (Hons) Osteopathy
PGCert MSK Sonography & Independent Prescriber

Chris is a highly experienced and specialised physiotherapist in musculoskeletal medicine and sports injuries.  He is clinical director at Complete Physio, who have 5 clinics located across London. Complete Physio have partnered with 4PerformanceUK to provide their clients with access to elite level physiotherapists and soft tissue therapists. Complete Physio are trusted by elite level runners, cyclists and athletes from a variety of other sports. We are dedicated to providing a professional, evidence based, accessible service  to optimise recovery from injury and injury prevention.


Hope Youngs

Sport and Exercise Psychologist

Sport and Exercise Psychology promotes understanding cognitive behaviour to improving performance and the importance of wellbeing and mental health of an individual. From elite athletes to beginners, practicing and developing mental skills can motivate athletes and decrease physical inactivity.


Imagery for performance, exercise to promote mental health and wellbeing.

Stephanie Goold 4 Performance Nutritional Therapist

Stephanie Goold
Nutritional Therapist

I’m a foodie with a life-long passion for how foods’ fascinating biochemical properties can truly affect physical and emotional health. Every day we ask a lot from the remarkable machine that is the human body, yet often it is not fed the right fuel.

Essential nutrition is crucial for optimal health and peak performance, both in everyday life and in sport.

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