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Case studies

RunningMarathon
21st April, 2024

London Marathon

James Phillips

42.2km
2hrs 41mins

Carb per hour: 79g

Sodium per hour: 465mg

Fluid per hour: 253ml

Relative sodium concentration: 1838mg/L

View James's Numbers
RunningMarathon
2nd April, 2023

Paris Marathon

James Phillips

42.2km
2hrs 37mins

Carb per hour: 83g

Sodium per hour: 573mg

Fluid per hour: 237ml

Relative sodium concentration: 2419mg/L

View James's Numbers
OtherSwimrun
5th September, 2022

ÖTILLÖ Swimrun World Championship

James Phillips

70.0km
9hrs 11mins

Carb per hour: 60g

Sodium per hour: 385mg

Fluid per hour: 272ml

Relative sodium concentration: 1416mg/L

View James's Numbers
1st
OtherSwimrun
16th July, 2022

Mad Hatter Roseland Swimrun

James Phillips

36.0km
5hrs 15mins

Carb per hour: 68g

Sodium per hour: 524mg

Fluid per hour: 381ml

Relative sodium concentration: 1375mg/L

View James's Numbers
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OtherSwimrun
2nd September, 2019

ÖTILLÖ Swimrun World Championships

James Phillips

75.0km
9hrs

Carb per hour: 46g

Sodium per hour: 637mg

Fluid per hour: 494ml

Relative sodium concentration: 1289mg/L

View James's Numbers