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Danni Shrosbree

Pro

Unbound 200 miler

1st June, 2024
USA
Emporia, Kansas
13th, FPRO
Cycling, Gravel - 321km
23°C
, Hot and Humid
10hrs 32mins
more race details

Danni's headline numbers

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~90
g
Carb per hour
Recommended 90g/h+
~645
ml
Fluid per hour
Recommended 250-750ml/h
~942
mg
Sodium per litre
Recommended 400-800mg/L
~5.6
mg
Caffeine per kg
Recommended 3-6mg/kg

Danni's strategy

Fueling

Carbohydrate is the main fuel you burn when racing. Failing to fuel properly is a leading cause of underperformance in longer races.

Carb-rich meal
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T - 1-4hrs: Ate a carb rich meal (Low in fat & fibre)
pre-fueled
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T - 15mins: Took in a final dose of carb
Carb per hour
Recommended 90g/h+
~90
g
Danni's Energy Rating
8
/10
"It was great and I felt strong the whole way, but next time I’ll make sure I completely empty my wrappers."
Our thoughts

Danni hit the exact carbohydrate recommendations from the Fuel & Hydration Planner for her race, taking a mixture of drink mix, gels and chews. Due to the logistical challenges of gravel racing, Danni chose to use a hydration pack to get the majority of her fuel via PF Carb & Electrolyte Drink Mix. This worked well as apart from some cravings for plain water towards the end, she had no adverse effects and her energy levels stayed high throughout.

Hydration

Taking on board an appropriate amount of fluid and sodium is essential to maintaining blood volume and supporting the cardiovascular effort needed to perform on race day.

Whilst the absolute amount of sodium and fluid consumed per hour is important, it’s critical to consider these in relation to each other. This is known as 'relative sodium concentration' and it’s expressed in milligrams per litre (mg/L). How much sodium you’re taking in per litre of fluid is more important than the absolute amount taken in per hour.

Danni716mg/L
Danni has been Sweat Tested to dial in her hydration plan

Sweat sodium concentration (mg/L) is largely genetically determined and remains relatively stable. Knowing how salty your sweat is enables you to replace a good proportion of your sweat losses, which can range from 200-2,000mg/L.

Whilst Danni’s losses are on the low side, getting her hydration strategy right is still crucial when it’s hot and/or humid as her higher sweat rate in these conditions can result in significant net losses over the duration of a race.

Learn more
Pre-loaded electrolytes
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T - 60mins: Drank ~500ml of strong electrolyte drink
Fluid per hour
Recommended 250-750ml/h
~645
ml
Sodium per litre
Recommended 400-800mg/L
~942
mg
Danni's Hydration Rating
10
/10
"I was really well hydrated at the end, although a little puffy, so maybe I overestimated how much water I’d drink and went too high with electrolytes."
Our thoughts

Danni’s hydration strategy was well-executed to see her through the race, apart from taking on a bit too much sodium. This left her feeling a bit ‘puffy’ and could be alleviated next time by replacing her PH 1000 (Drink Mix) with PH 500, or diluting down her intake with additional plain water.

Caffeine

Beyond the Three Levers of Performance (carb, sodium and fluid), caffeine is one of only a few substances that is proven to improve performance for most endurance athletes as it can help stave off mental and physical fatigue.

Pre-caffeinated
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T - 0-4hrs: Had a final hit of caffeine
Caffeine per kg
Recommended 3-6mg/kg
~5.6
mg
Our thoughts

After having a coffee the morning of the race, Danni consumed additional caffeine doses to keep the stimulant circulating in her bloodstream through the use of PF 30 Caffeine Gels. This helped her hit the top end of the scientifically recommended guidelines and reap the maximal ergogenic benefits throughout the day.

How Danni hit her numbers

Here's everything that Danni ate and drank on the day...

Danni's weapons of choice

Final thoughts

Danni's Satisfaction Rating
8
/10
I nearly nailed my nutrition, but just after a section called Little Egypt, I missed the chance to get on the wheel of a really strong group of girls, which is why I finished where I did. I couldn’t have worked any harder.
Danni
Danni managed to increase her carb intake this year compared to her 2023 attempt at Unbound and had the energy throughout to show for it. To get ahead of flavour fatigue next time out, she could intersperse more ‘real food’ options, making sure her gut can tolerate this in training. Fine-tuning the hydration part of her strategy to be more in line with her sweat sodium losses may also help reduce swelling following races in future.
PF&H

Danni's full stats

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Overall
946g total carb
90g per hour
6,800ml total fluid
645ml per hour
6,405mg total sodium
607mg per hour
942mg
Sodium per litre
374mg total caffeine
5.6mg per kg

Data Confidence
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We rate each of our case studies from 1-5 based on the level of accuracy, and our confidence in the data.
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2
3
4
5

There is some confidence in the quantities and brands of products consumed but the data may lack specifics (e.g. volumes specific flavours). A high number of estimations have been made and the room for error is moderate-high. There may also be the possibility that some intake has been grossly over- or under-estimated.

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