Case studies

RunningMarathon

11th October, 2026

Chicago Marathon

Izzi Batt-Doyle

Carb per hour: 119g

Sodium per hour: 625mg

Fluid per hour: 719ml

Relative sodium concentration: 869mg/L

View Izzi's Numbers

RunningMarathon

9th March, 2025

Nagoya Women's Marathon

Izzi Batt-Doyle

Carb per hour: 80g

Sodium per hour: 0mg

Fluid per hour: 418ml

Relative sodium concentration: 0mg/L

View Izzi's Numbers

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