Our team

If Carlsberg did teams...this lot would help them stay hydrated with electrolytes that match how they sweat.


Andy Blow

Role: Co-Founder and Sports Scientist
How Salty? Loses over 1,850mg of sodium per litre of sweat
PH Products: PH 1500
Qualifications: BSc Sports and Exercise Science

Andy Blow is a Sports Scientist with a degree in Sports and Exercise Science from the University of Bath. An expert in sweat, dehydration and cramping, Andy previously worked as the Team Sports Scientist for the Benetton and Renault Formula 1 teams, and remains an adviser to the Porsche Human Performance Centre.

An elite level triathlete in his younger days, Andy has finished in the top-10 of Ironman and IM 70.3 races, as well as winning an Xterra World title.

It was Andy's own struggles with cramp and hydration that led to him specialising in electrolyte replenishment and founding Precision Hydration. 

Andy is a leading figure in the world of sports hydration and has worked alongside Dr Raj Jutley, as well as other top sports scientists, to co-author a number of studies and books.

Published Work:

Considering exercised-associated hyponatremia as a continuum 
- BMJ Journals

Normative data on regional sweat sodium concentrations of professional male team sport athletes 
- Journal of the International Society of Sports Nutrition

Salty relationships with bone: Not calcium nor Vitamin D
- Journal of the Endocrine Society

The Motorsport Fitness Manual 



Jonny Tye

Role: Chief Operating Officer
How Salty? Loses about 1,300mg of sodium per litre of sweat
PH Products: Preloads with PH 1500, trains with PH 1000 
Qualifications: MEng in Mechanical Engineering

Jonny Tye was a national champion canoeist between 2007-12 and won his first major championship medal in 2009 - a bronze at the European Marathon Championships. In 2011 Jonny became a double silver medallist at the Marathon World Championships in Singapore.

Jonny has a degree in Mechanical Engineering from Surrey University, where he received a sports scholarship and was a member of the Performance Athlete Support Scheme. 

Jonny has been involved with Precision Hydration since the company's inception and now directs the majority of the operational aspects of the business. He has also co-authored several papers with Andy Blow.

Published Work:

Considering exercised-associated hyponatremia as a continuum 
- BMJ Journals

Normative data on regional sweat sodium concentrations of professional male team sport athletes 
- Journal of the International Society of Sports Nutrition



Dr Raj Jutley

Role: Co-Founder, Head of Science
How Salty? Loses just 500mg of sodium per litre of sweat
PH Products: Trains with PH 500
Qualifications: BMedSci (Hon), MB ChB, DM, FCS ECSA, FRCS Eng, FRCS CTh

Professor Raj Jutley is a consultant heart surgeon who co-founded Precision Hydration with Andy Blow. He trained in Scotland and worked as a consultant in Nottingham, UK. He now spends the bulk of his time in Kenya where he's setting up affordable healthcare systems. In the UK, Raj was the medical consultant to the Porsche Human Performance Centre as well as to the highly successful Racing Steps Foundation (www.racingsteps.co.uk). 

Raj, who drives classic rally cars and won the South African National Championship Classic Class in 2019, has over 40 peer reviewed scientific articles to his name, with the aim to add more of the topic of customised hydration. He continues to be involved in a scientific capacity with Precision Hydration, providing valuable input specifically in response to medically-based queries.

Books

Publications

Normative data on regional sweat sodium concentrations of professional male team sport athletes 
- Journal of the International Society of Sports Nutrition

PhD Supervision

PhD Thesis: The effect of individualised electrolyte supplementation on physical and cognitive performance in elite motorsport drivers

Justin Holland, University of Queensland, Australia, 2019

Presentations/Abstracts

  • Sodium Supplementation Improves Physical Performance. 17th Annual Meeting, European Congress of Sports Science, 4-7 July 2012
  • Appropriate Sodium Supplementation Increases Serum Sodium Levels in Elite Athletes– Implications for Exercise Associated Hyponatremia 17th Annual Meeting, European Congress of Sports Science, 4-7 July 2012



Abby Coleman

Role: Sports Scientist
How Salty? Loses a little over 1,200mg of sodium per litre of sweat
PH Products: PH 1000
Qualifications: BSc in Sports and Exercise Science, Precision Nutrition Certificate and Level 3 Diploma in Sports Massage Therapy

Abby Coleman is a Sports Scientist who completed her degree in Sports and Exercise Science at the University of Bath.

She's previously worked at the Porsche Human Performance Centre as an Exercise Physiologist before joining the team as our resident Sports Scientist.

If you have science-based hydration questions feel free to fire them over to hello@precisionhydration.com where you'll always get an answer and just might see it appear as an #AskAbby in our newsletter too!



Brad Williams

Role: Team PH Captain and Social Media Manager
How Salty? Loses just over 1,000mg of sodium per litre of sweat
PH Products: PH 1500 to preload, PH 1000 during, and SweatSalt Capsules when racing

A professional triathlete, Brad has raced Kona four times as an amateur, with a top placement of 6th in his age group (9:03).

Brad turned pro in 2015 and has since made more than 30 starts in 70.3 and IM races, picking up a half-IM win and 22 top-ten finishes.

Brad has been using PH since he was sweat tested in 2015 and looks after the fantastic athlete ambassadors who represent PH, while Brad also runs the PH social media channels, including Instagram, Facebook and Twitter.



James Phillips

Role: Customer Service Manager and Sports Scientist
How Salty? Loses more than 1,600mg of sodium per litre of sweat
PH Products: PH 1500PH 1000
Qualifications: BSc in Sports and Exercise Science

James Phillips is a Sports Scientist with a degree in Sports and Exercise Science from the University of Exeter.

Our chief Sweat Test Officer, James has a developed a huge amount of customer service experience and he's the man who helps athletes get the most out of PH and perform at their best.

Feel free to fire over any questions to James at hello@precisionhydration.com.

Formerly an elite age group triathlete, who discovered PH through his own struggles with cramp and very salty sweat, James continues to compete in Swimrun and long distance running events. 



Sean O'Mahony

Role: North American Operations Manager
How Salty? Loses just over 600mg of sodium per litre of sweat
PH Products: Preloads with PH 1500, Trains with PH 500

Sean is based in Vancouver and supports our sales efforts in North America, particularly in Canada and on the West Coast.

Sean is a successful technology startup manager in and boasts a wealth of international management and operational experience having been involved in Silicon Valley in the early years.

A keen cyclist and triathlete, Sean (and the majority of the PH team) can be found over on our Strava group



Dave Colley

Role: Marketing Director
How salty? Loses just over 1,000mg of sodium per litre of sweat
PH Products: Trains with PH 1000
Qualifications: MA in History

Dave earned a Masters Degree in history from the University of Cambridge before moving into the world of ecommerce and marketing. He helped grow Europe's fastest growing dating site (Twoo) and sell it to Match.com and built LoveThis, top 25 UK app for sharing recommendations with friends before he joined the team at Precision Hydration. 

Dave dabbles with a bit of biking and running and is a keen hiker - he counts the Three Peaks Challenge, Tongariro Alpine Crossing and Salcantay Trek in the Andes amongst his achievements.



Greg Thew

Role: Customer Service Specialist
How Salty? Loses just over 1,100mg of sodium per litre of sweat
PH Products: PH 1500 & PH 1000
Qualifications: BSc in Sports Coaching Science

Greg is currently studying for an MA Leadership in Sport, alongside his work.

A former cricketer, who has played and coached around the world, including stints in Australia and New Zealand. After an injury ended his cricketing career, he turned to endurance sports for a new challenge and is now a keen triathlete. If he's not in the gym or out doing some form of physical activity, you may also find him testing his memory at a range of local pub quizzes.

If you have any questions then please don't hesitate to reach out to Greg on hello@precisionhydration.com.



Chris Knight

Role: Marketing Manager
How Salty? Loses just under 700mg of sodium per litre of sweat
PH Products: PH 1500 to preload and PH 500 during training
Qualifications: MSc in Sport and Exercise Psychology

Chris is a qualified journalist having completed an NCTJ-accredited course in Multimedia Journalism at the Daily Echo in Bournemouth and he's had work published in a variety of publications, including The Guardian, The Sportsman and All Out Cricket magazine.

Chris is particularly interested in the mental side of sport and also has a Masters in Sports & Exercise Psychology from the University of the West of England, Bristol. He looks after the content side of the Precision Hydration website, so feel free to get in touch if you have a story to tell. 



Dawn Grant

Role: Office Manager
How Salty? Loses just over 900mg of sodium per litre of sweat
PH Products: PH 1500 to preload and PH 500 during

Dawn is a qualified Personal Assistant and is the glue that keeps everything together at Precision Hydration headquarters. 

Dawn rides road and mountain bikes, plays squash for fun, and was a member of the Bournemouth Echo Ladies' Darts team back in the 90s. She also has two teenage boys at home to keep her on her toes.



Sam Cummings

Role: Supply Chain and Logistics Manager
How Salty? Loses just over 900mg of sodium per litre of sweat
PH Products: PH 1500 to preload and PH 500 during

Sam is the PH Supply Chain and Logistics Manager at Precision Hydration and he brings a vast amount of experience in fulfilment, logistics and customer service to the team. Sam ensures the production and delivery of products runs smoothly.

Since joining PH, Sam has become a keen cyclist and he'll often spend his evenings working out on TrainerRoad.