Case studies

What's all this about?

8th February, 2025

Black Canyon 100km

Carb per hour: 114g

Sodium per hour: 364mg

Fluid per hour: 22.62oz

Relative sodium concentration: 545mg/L

29th August, 2024

OCC by UTMB

Carb per hour: 87g

Sodium per hour: 289mg

Fluid per hour: 22.79oz

Relative sodium concentration: 429mg/L

Most of these athletes use PH 1500 to start hydrated

Read our guide to starting hydrated