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Case studies

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
1st
RunningUltra
9th March, 2024

24 Ore Di Torino

Simen Holvik

246.4km
24hrs

Carb per hour: 71g

Sodium per hour: 522mg

Fluid per hour: 364ml

Relative sodium concentration: 1436mg/L

View Simen's Numbers
1st
RunningUltra
17th November, 2023

Fat Ox 48h

Simen Holvik

361.0km
41hrs 30mins

Carb per hour: 50g

Sodium per hour: 357mg

Fluid per hour: 488ml

Relative sodium concentration: 731mg/L

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2nd
RunningUltra
30th September, 2023

Spartathlon

Simen Holvik

245.5km
22hrs 17mins

Carb per hour: 65g

Sodium per hour: 1077mg

Fluid per hour: 752ml

Relative sodium concentration: 1433mg/L

View Simen's Numbers
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2nd
RunningUltra
4th July, 2023

Badwater 135

Simen Holvik

217.3km
22hrs 51mins

Carb per hour: 115g

Sodium per hour: 1811mg

Fluid per hour: 1,272ml

Relative sodium concentration: 1423mg/L

View Simen's Numbers