About us

About the coach

Jon Cowell has been training, coaching and mentoring all manner of athletes for over 20 years; from road running club beginners and experienced marathoners to medal winning Age Group Duathletes, Triathletes and International athletes.


With a supportive and empathetic style, Jon will encourage beginners to take on the multisport challenge, or guide runners through the transition to achieve natural running form or provide a critical and constructive review of the more experienced athlete's training.

Specialising in gaining maximum investment from the minimum workload, arriving at the start line fit and fresh, Jon can assist you with your athletic aspirations.

Jon is a Newton Natural Running Form coach and combines these skills with his additional experience and qualifications in coaching. He has successfully worked with athletes of all abilities to improve their running form, achieving championship winning form at all levels of his coaching.



  • MSc Sports Coaching (Loughborough University)

  • BTF Level 3 Triathlon Coach

  • First-class Honours Degree Sport Science

  • Newton Natural Running Form Coach

  • BTF Open Water Swimming Coach

  • Triathlon England Coach Tutor

  • Triathlon England Coach Mentor

  • UK Athletics Performance Coach (Endurance)

  • UK Athletics Strength and Conditioning

  • UK Athletics Level 3 Endurance Official

  • Diploma in Sports Massage

  • NVQ Level 5 Sports Management

  • Professional Certificate in Education

  • UK Anti-Doping Accredited Advisor

Coaching experience

  • Triathlon Club Head Coach 15 years
  • Coached elite athlete to 3 European Gold and 1 World Bronze medal
  • 34 World and European medals achieved by coached athletes
  • 3 x GB Team Captain, ITU World Long Distance Duathlon
  • 4 x GB Team Manager, ITU World Long Distance Duathlon
  • 3 x GB AG Team Manager, ETU European Triathlon
  • 173 medals won by Team GB athletes (62 Gold)

Racing experience

Jon is a competing athlete himself, having run his first marathon at age 14. Since then he has branched out into duathlon and triathlon, and represented Great Britain many times as an age-group duathlete, winning silver medal at the European championships in 2008. During the last 5 years, he has worked on his running form, gradually transitioning back to a more natural, forefoot style of running, which served him so well as a teenager on the track. This has made him a more efficient runner, suffering fewer injuries. More recently, Jon broke the Guinness world record for the indoor ironman triathlon in a time of 08:24.47 and also the Guinness world record for the greatest distance run on a treadmill in 12 hours - 102.08km.

  • Over 380 senior races with 98 podium finishes

  • New Zealand Coast to Coast finisher 2016

  • Guinness World Record Indoor Ironman 2012

  • Guinness World Record Indoor 12 hour run 2013

  • Second overall UK Powerman Sprint 2014

  • First AG UK Powerman 2013

  • BTF National Ranking Series AG Champion 2009

  • European Duathlon AG Silver Medalist 2008

  • BTF Mazda National Ranking Series AG Runner Up 2008

  • 2nd Veteran World Duathlon Series Benny Vansteelant Memorial Race 2008


  • 4 x Ironman finisher

  • 3 x PowerMan Zofingen finisher

  • Represented Team GB AG at 24 World and European championships

  • Former Army (Cyprus) Triathlon Chairman

  • Over 20 years of multisport racing

  • Race organiser for over 20 Duathlon and Triathlon events and in excess of 50 road running races and cross country events.


Newton Natural Running


Jon Cowell is a Natural Running Form Coach Trainer with all the rights, privileges and honours as well as the obligations and responsibilities entrusted by the Newton Running company.

Sports nutrition advice

Sarah's interest in sports nutrition began 10 years ago when training for her first marathon, realising that she needed to change her diet to match her increasing training load. Later she turned her attention to Jon and his nutritional needs, supporting him in his Duathlon racing and training activities. 

Sarah is qualified to promote healthy eating for sports people at all levels of ability. She applies the principles of nutrition to support athlete goals as part of their training programme. She holds the Level 4 Certificate in Nutrition for Physical Activity and Sport, awarded by the Royal Society for Public Health (RSPH).

Sarah has also studied basic human nutrition with the Open University and followed this up with a food science course (food composition and analysis).

Always encouraged by her mum to help out in the kitchen as a child, Sarah has since become a competent and innovative cook. Her challenge now is to find a balance between the enjoyment of cooking and baking, the social pleasures of eating and the desire to eat a healthy diet, geared to fuelling the body’s energy needs.




  • RSPH Level 4 Certificate in Nutrition for Physical Activity and Sport.

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Applied Triathlon Coaching incorporates British Duathlon, Natural Running Form and Applied Sports Therapy.