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Case studies

1st
TriathlonMiddle distance
12th July, 2026

IRONMAN 70.3® Swansea

Lizzie Rayner

113.1km
4hrs 23mins

Carb per hour: 101g

Sodium per hour: 662mg

Fluid per hour: 580ml

Relative sodium concentration: 1141mg/L

View Lizzie's Numbers
TriathlonMiddle distance
12th July, 2026

IRONMAN 70.3® Swansea

Benji Simpson

133.1km
6hrs 10mins

Carb per hour: 71g

Sodium per hour: 786mg

Fluid per hour: 713ml

Relative sodium concentration: 1102mg/L

View Benji's Numbers
TriathlonMiddle distance
12th July, 2026

IRONMAN 70.3® Swansea

Phillip Morgan

113.1km
8hrs 36mins

Carb per hour: 71g

Sodium per hour: 927mg

Fluid per hour: 651ml

Relative sodium concentration: 1423mg/L

View Phillip's Numbers
CyclingGravel
7th July, 2026

The London Orbit

Jenson Young

350.0km
13hrs 56mins

Carb per hour: 116g

Sodium per hour: 861mg

Fluid per hour: 1,135ml

Relative sodium concentration: 759mg/L

View Jenson's Numbers
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1st
TriathlonFull distance
6th July, 2026

IRONMAN® Hamburg

Solveig Løvseth

226.3km
8hrs 11mins

Carb per hour: 133g

Sodium per hour: 1026mg

Fluid per hour: 880ml

Relative sodium concentration: 1167mg/L

View Solveig's Numbers
RunningUltra
27th June, 2026

Western States® 100-Mile Endurance Run

Lotti Brinks

161.3km
16hrs 4mins

Carb per hour: 90g

Sodium per hour: 580mg

Fluid per hour: 485ml

Relative sodium concentration: 1196mg/L

View Lotti's Numbers
RunningUltra
27th June, 2026

Western States® Endurance Run

Jeshurun Small

161.0km
16hrs 27mins

Carb per hour: 62g

Sodium per hour: 448mg

Fluid per hour: 677ml

Relative sodium concentration: 662mg/L

View Jeshurun's Numbers
RunningUltra
27th June, 2026

Western States® 100-Mile Endurance Run

Lauren Puretz

161.3km
17hrs 24mins

Carb per hour: 73g

Sodium per hour: 472mg

Fluid per hour: 483ml

Relative sodium concentration: 978mg/L

View Lauren's Numbers
Most of these athletes use PH 1500 to start hydratedRead our guide to starting hydratedTake a look
1st
CyclingGravel
14th June, 2026

Wish One Millau Gravel

Sophie Wright

130.0km
4hrs 35mins

Carb per hour: 83g

Sodium per hour: 743mg

Fluid per hour: 773ml

Relative sodium concentration: 961mg/L

View Sophie's Numbers
1st
TriathlonFull distance
14th June, 2026

IRONMAN® Cairns

Penny Slater

226.2km
8hrs 59mins

Carb per hour: 101g

Sodium per hour: 194mg

Fluid per hour: 697ml

Relative sodium concentration: 278mg/L

View Penny 's Numbers
1st
RunningUltra
13th June, 2026

South Downs Way 100

Sarah Webster

160.0km
14hrs 27mins

Carb per hour: 59g

Sodium per hour: 281mg

Fluid per hour: 413ml

Relative sodium concentration: 679mg/L

View Sarah's Numbers
RunningMarathon
6th June, 2026

Utah Valley Marathon

Susie Routt

42.2km
5hrs 37mins

Carb per hour: 55g

Sodium per hour: 273mg

Fluid per hour: 744ml

Relative sodium concentration: 367mg/L

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