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Case studies

RunningMarathon
31st May, 2026

Cork Marathon

Jack Davis

42.2km
2hrs 49mins

Carb per hour: 96g

Sodium per hour: 442mg

Fluid per hour: 389ml

Relative sodium concentration: 1136mg/L

View Jack's Numbers
TriathlonMiddle distance
9th November, 2025

Precision Fuel & Hydration IRONMAN 70.3® World Championship

Jack Davis

113.1km
4hrs 53mins

Carb per hour: 107g

Sodium per hour: 968mg

Fluid per hour: 784ml

Relative sodium concentration: 1234mg/L

View Jack's Numbers
CyclingGravel
31st May, 2025

Unbound Gravel 100

Jack Davis

174.6km
5hrs 56mins

Carb per hour: 96g

Sodium per hour: 584mg

Fluid per hour: 885ml

Relative sodium concentration: 660mg/L

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RunningMarathon
27th April, 2025

London Marathon

Jack Davis

42.2km
3hrs

Carb per hour: 60g

Sodium per hour: 498mg

Fluid per hour: 464ml

Relative sodium concentration: 1071mg/L

View Jack's Numbers
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TriathlonMiddle distance
15th September, 2024

IRONMAN 70.3® Weymouth

Jack Davis

113.1km
4hrs 30mins

Carb per hour: 56g

Sodium per hour: 335mg

Fluid per hour: 520ml

Relative sodium concentration: 645mg/L

View Jack's Numbers
RunningMarathon
21st April, 2024

London Marathon

Jack Davis

42.2km
3hrs 26mins

Carb per hour: 61g

Sodium per hour: 290mg

Fluid per hour: 290ml

Relative sodium concentration: 1000mg/L

View Jack's Numbers
RunningMarathon
2nd April, 2023

Paris Marathon

Jack Davis

42.2km
3hrs 1min

Carb per hour: 70g

Sodium per hour: 414mg

Fluid per hour: 331ml

Relative sodium concentration: 1250mg/L

View Jack's Numbers
TriathlonFull distance
7th May, 2022

IRONMAN® World Championships

Jack Davis

226.2km
10hrs 55mins

Carb per hour: 61g

Sodium per hour: 631mg

Fluid per hour: 689ml

Relative sodium concentration: 916mg/L

View Jack's Numbers
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