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Case studies / Running

RunningMarathon
18th October, 2026

Amsterdam Marathon

Dravid Hirani

42.2km
3hrs 57mins

Carb per hour: 68g

Sodium per hour: 189mg

Fluid per hour: 134ml

Relative sodium concentration: 1415mg/L

View Dravid's Numbers
RunningMarathon
18th October, 2026

Amsterdam Marathon

Clare Saxton

42.2km
4hrs 57mins

Carb per hour: 71g

Sodium per hour: 151mg

Fluid per hour: 131ml

Relative sodium concentration: 1152mg/L

View Clare's Numbers
RunningMarathon
11th October, 2026

Chester Marathon

James Hatton

42.2km
2hrs 41mins

Carb per hour: 67g

Sodium per hour: 0mg

Fluid per hour: 566ml

Relative sodium concentration: 0mg/L

View James's Numbers
RunningMarathon
11th October, 2026

Chicago Marathon

Ant Gritton

42.2km
2hrs 41mins

Carb per hour: 86g

Sodium per hour: 668mg

Fluid per hour: 445ml

Relative sodium concentration: 1500mg/L

View Ant's Numbers
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RunningMarathon
11th October, 2026

Chicago Marathon

Izzi Batt-Doyle

42.2km
2hrs 20mins

Carb per hour: 119g

Sodium per hour: 625mg

Fluid per hour: 719ml

Relative sodium concentration: 869mg/L

View Izzi's Numbers
RunningUltra
11th October, 2026

Grizzly Ultra Marathon

Becki Mercer

50.0km
8hrs 42mins

Carb per hour: 55g

Sodium per hour: 171mg

Fluid per hour: 376ml

Relative sodium concentration: 454mg/L

View Becki's Numbers
RunningMarathon
10th October, 2026

Chicago Marathon

CJ Albertson

42.2km
2hrs 7mins

Carb per hour: 113g

Sodium per hour: 94mg

Fluid per hour: 424ml

Relative sodium concentration: 222mg/L

View CJ's Numbers
RunningUltra
3rd October, 2026

Run to the Sea Bournemouth

Macie Head

50.0km
5hrs 32mins

Carb per hour: 66g

Sodium per hour: 383mg

Fluid per hour: 550ml

Relative sodium concentration: 697mg/L

View Macie's Numbers
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RunningUltra
19th September, 2026

Centurion Chiltern Wonderland

Tanya Godbeer

80.5km
10hrs 59mins

Carb per hour: 51g

Sodium per hour: 252mg

Fluid per hour: 409ml

Relative sodium concentration: 615mg/L

View Tanya's Numbers
RunningHalf marathon
13th September, 2026

The New Forest Half Marathon

Emily Kiriakou

21.1km
2hrs 10mins

Carb per hour: 52g

Sodium per hour: 305mg

Fluid per hour: 391ml

Relative sodium concentration: 780mg/L

View Emily's Numbers
RunningHalf marathon
13th September, 2026

The New Forest Half Marathon

Lucy Brown

21.1km
2hrs 3mins

Carb per hour: 15g

Sodium per hour: 0mg

Fluid per hour: 136ml

Relative sodium concentration: 0mg/L

View Lucy's Numbers
2nd
RunningUltra
28th August, 2026

UTMB

Rachel Entrekin

173.6km
22hrs 15mins

Carb per hour: 52g

Sodium per hour: 445mg

Fluid per hour: 469ml

Relative sodium concentration: 948mg/L

View Rachel's Numbers
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