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Mel Varvel

IRONMAN® Wales

11th September, 2022WalesTemby 2nd, F50-54

Mel's headline numbers

~51g
Carb per hour
Recommended 75g/h
~343ml
Fluid per hour
Recommended 250-750ml/h
~1,410mg
Sodium per litre
Recommended 1100-1500mg/L
~3.9mg
Caffeine per kg
Recommended 3-6mg/kg

Mel'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 75g/h
~51g
Mel's Energy Rating7/10

"I felt really good until the last half of the run when I stopped eating and experienced a spectacular bonk."

Our thoughts

Mel has been working hard on increasing her fuel intake in the build-up to this race, as it’s been a struggle for her in the past. Using mainly PF 90 Gels, Mel fueled extremely well on the bike, managing to hit ~73g carb per hour. However, she did experience stomach discomfort coming off the bike, and subsequently struggled to fuel without feeling nauseous on the run. This meant her intake dropped significantly (60% from bike to run) which most likely contributed to Mel hitting a wall in the second half of the run. In future, some more gut training especially on her tougher training sessions, should help Mel avoid this discomfort and get her to maintain consistently high energy levels across a race.

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.

Mel1290mg/L

Mel 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.

Given Mel's losses are High (1,290mg/L), nailing her hydration strategy remains important, even when it's Mild.

Learn more
Pre-loaded electrolytes

T - 60mins: Drank ~500ml of strong electrolyte drink

Fluid per hour
Recommended 250-750ml/h
~343ml
Sodium per litre
Recommended 1100-1500mg/L
~1,410mg
Mel's Hydration Rating8/10

"I did a great job of hydrating properly on the bike, but the stomach discomfort mid-way through the run disrupted my strategy."

Our thoughts

Mel used PH 1500 (Drink Mix) for electrolytes on her bike alongside a couple of Electrolyte Capsules to replace a good proportion of her high sweat sodium losses. She frontloaded her sodium intake, taking more of it on the bike than on the run, meaning that even when it dropped significantly during the second half of the run she was still pleased to report zero cramping as she avoided race-impacting levels of dehydration.

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
~3.9mg
Our thoughts

Mel utilised the ergogenic benefits of caffeine well during this race, with both a pre-race coffee and PF 30 Caffeine Gels during the race, topping up her levels to reach the 3-6mg/kg recommendation.

How Mel hit her numbers

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

Before race (>30 mins)
Pre-race (<30 mins)
Run

Final thoughts

Considering this is my first full distance triathlon in a few years, I’m very happy with a 2nd place finish.

Mel

Mel did extremely well on a tough course to finish second in her age group at IRONMAN® Wales. She diligently followed her plan on the bike, although the onset of nausea meant her intended fuel and hydration on the run fell by the wayside and left her struggling on the final laps. For Mel’s future events it’ll be important to continue her gut training to ensure she can prolong her capacity to take on fuel and avoid that dreaded bonk.

PF&H

Mel's full stats

Overall
622g total carb51g per hour
4,150ml total fluid343ml per hour
5,852mg total sodium483mg per hour
1,410mgSodium per litre
238mg total caffeine3.9mg per kg
Bike and Run
Bike
Run

Data Confidence

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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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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