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Case studies

1st
TriathlonFull distance
27th July, 2025

IRONMAN® Leeds

Jenny Campbell

226.2km
13hrs 57mins

Carb per hour: 63g

Sodium per hour: 302mg

Fluid per hour: 404ml

Relative sodium concentration: 746mg/L

View Jenny's Numbers
1st
TriathlonMiddle distance
13th July, 2025

IRONMAN 70.3® Swansea

Harry Palmer

113.1km
3hrs 51mins

Carb per hour: 93g

Sodium per hour: 259mg

Fluid per hour: 750ml

Relative sodium concentration: 346mg/L

View Harry's Numbers
1st
RunningUltra
7th July, 2025

Badwater 135

Simen Holvik

217.3km
21hrs 47mins

Carb per hour: 87g

Sodium per hour: 862mg

Fluid per hour: 907ml

Relative sodium concentration: 950mg/L

View Simen's Numbers
3rd
CyclingGravel
6th July, 2025

Gravel Mexico

Hayley Simmonds

240.0km
9hrs 33mins

Carb per hour: 101g

Sodium per hour: 458mg

Fluid per hour: 580ml

Relative sodium concentration: 790mg/L

View Hayley's Numbers
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2nd
TriathlonFull distance
29th June, 2025

IRONMAN® Frankfurt

Kristian Høgenhaug

226.2km
7hrs 28mins

Carb per hour: 135g

Sodium per hour: 1139mg

Fluid per hour: 1,110ml

Relative sodium concentration: 1026mg/L

View Kristian's Numbers
TriathlonFull distance
29th June, 2025

IRONMAN® Frankfurt

Raff Hussey

226.2km
11hrs 25mins

Carb per hour: 89g

Sodium per hour: 647mg

Fluid per hour: 793ml

Relative sodium concentration: 815mg/L

View Raff's Numbers
2nd
RunningUltra
28th June, 2025

Western States® 100-Mile Endurance Run

Chris Myers

161.3km
14hrs 17mins

Carb per hour: 126g

Sodium per hour: 1231mg

Fluid per hour: 1,118ml

Relative sodium concentration: 1101mg/L

View Chris's Numbers
1st
RunningUltra
28th June, 2025

Western States® 100-Mile Endurance Run

Caleb Olson

161.3km
14hrs 11mins

Carb per hour: 109g

Sodium per hour: 724mg

Fluid per hour: 1,092ml

Relative sodium concentration: 663mg/L

View Caleb's Numbers
Most of these athletes use PH 1500 to start hydratedRead our guide to starting hydratedTake a look
RunningUltra
28th June, 2025

Western States® 100-Mile Endurance Run

Jeff Mogavero

161.3km
14hrs 30mins

Carb per hour: 97g

Sodium per hour: 580mg

Fluid per hour: 635ml

Relative sodium concentration: 914mg/L

View Jeff's Numbers
RunningUltra
28th June, 2025

Western States® 100-Mile Endurance Run

Erin Clark

161.3km
18hrs 52mins

Carb per hour: 81g

Sodium per hour: 751mg

Fluid per hour: 773ml

Relative sodium concentration: 971mg/L

View Erin's Numbers
RunningUltra
28th June, 2025

Western States® 100-Mile Endurance Run

Dan Jones

161.3km
14hrs 36mins

Carb per hour: 110g

Sodium per hour: 640mg

Fluid per hour: 803ml

Relative sodium concentration: 797mg/L

View Dan's Numbers
RunningUltra
28th June, 2025

Western States® 100-Mile Endurance Run

Peter Frano

161.3km
16hrs 10mins

Carb per hour: 70g

Sodium per hour: 457mg

Fluid per hour: 802ml

Relative sodium concentration: 569mg/L

View Peter's Numbers
Most athletes seen here eat a gel just before they start(Usually it's a PF 30 Gel...)Learn more