/

Eli Hemming

Pro

OCC by UTMB

29th August, 2024
France
Chamonix
1st, MPRO
Running, Ultra - 57km
25°C
, Hot
5hrs 11mins
more race details

Eli's headline numbers

?
?
?
~87
g
Carb per hour
Recommended 90g/h+
~674
ml
Fluid per hour
Recommended 500-1,000ml/h
~429
mg
Sodium per litre
Recommended 300-700mg/L
~4.5
mg
Caffeine per kg
Recommended 3-6mg/kg
Image Credits: Manuel Aribe

Eli'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
?
T - 1-4hrs: Ate a carb rich meal (Low in fat & fibre)
pre-fueled
?
T - 15mins: Took in a final dose of carb
Carb per hour
Recommended 90g/h+
~87
g
Eli's Energy Rating
8
/10
"I felt great for most of the race up to the last check-point at La Flégère, but the heat really impacted my energy after that."
Our thoughts

With no external assistance allowed at checkpoints, Eli chose to carry all of his fuel right from the start of the race. He practised his plan ahead of the race, training his gut to tolerate the recommended ~90g/h of carbs and was able to mostly stick to this on race day. He used a combination of PF 300 Flow Gel and PF 30 Gels successfully without any GI issues. He even noted after the race how comfortable the products felt on his stomach and since he was used to them in training (gut training, he was determined to stick to them for the race rather than picking up additional or different products from the on-course aid stations.

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.

Eli560mg/L
Eli has been Sweat Tested to dial in his 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 Eli’s losses are on the low side, getting his hydration strategy right is still crucial when it’s hot and/or humid as his higher sweat rate in these conditions can result in significant net losses over the duration of a race.

Learn more
Didn't pre-load electrolytes
?
Drinking a strong electrolyte drink before the race could have helped Eli start optimally hydrated
Fluid per hour
Recommended 500-1,000ml/h
~674
ml
Sodium per litre
Recommended 300-700mg/L
~429
mg
Eli's Hydration Rating
8
/10
"I felt like I was drinking quite a bit, probably the most I'd drank in a race before. I could probably have drank even more given how much I was sweating."
Our thoughts

Eli started with one flask of PH 1000 which he aimed to consume before the first checkpoint at ~7.6 km, before refilling his soft flask and adding another PH 1000 (Drink Mix) sachet, as he continued to do at each of the next four check-points. This ensured he was consuming his goal fluid intake of ~700 ml/h, replacing most of his estimated sweat losses. In addition to the electrolytes he consumed in his soft flasks, Eli also had two Electrolyte Capsules to pair with the plain water he consumed and make sure his relative sodium concentration stayed on track with his plan. Eli mentioned that he experienced some cramping towards the last check-point, but thought this was more related to heat and potentially some overexertion on the last climb than his hydration strategy. Still, picking up some additional fluid at aid stations may help to overcome some of the heat stress that he experienced, and having a couple of additional Electrolyte Capsules to increase his overall sodium intake could be useful to attempt to mitigate against this cramping in future races.

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
?
T - 0-4hrs: Had a final hit of caffeine
Caffeine per kg
Recommended 3-6mg/kg
~4.5
mg
Our thoughts

Eli is familiar with and comfortable using caffeine in his racing to support his performance. He pre-caffeinated with a PF 30 Caffeine Gel just before heading to the start line, and took two further Caffeine Gels during the race to maintain a consistent circulating concentration of the stimulant in his bloodstream. His overall intake fell within the guidelines to reap the ergogenic benefits and likely supported his energy levels during such a demanding race.

How Eli hit his numbers

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

Eli's weapons of choice

Final thoughts

Eli's Satisfaction Rating
10
/10
I'm really happy with my fuel and hydration plan for the race and stoked to take the win!
Eli
After discussing his race nutrition strategy with the PF&H Sports Science Team, Eli followed the plan to perfection. He did well to push through some difficult patches where he experienced some heat stress, and stuck it out to the finish line to take the win at OCC. Considering he easily tolerated ~87g/h, he could look to increase this carb intake slightly to support his performance in future races, as well as carry a couple of spare Electrolyte Capsules to help mitigate against cramping.
PF&H

Eli's full stats

?
?
?
Overall
454g total carb
87g per hour
3,500ml total fluid
674ml per hour
1,500mg total sodium
289mg per hour
429mg
Sodium per litre
300mg total caffeine
4.5mg per kg

Data Confidence
?

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

There is good confidence in the accuracy of the data reported. An athlete feels that the numbers closely reflect what they consumed despite a couple of estimations which may carry some degree of error. The majority of what was consumed is recorded to a high level of specificity (most volumes are known through the use of bottles brands quantities flavours). The numbers are very plausible and align with previous data recordings (if an athlete has collected data previously).

Eli's recent case studies

see all
Nail your next event with a FREE Fuel & Hydration Plan
Get started