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Adam Bowden

Pro

IRONMAN® Bolton

4th July, 2021
England
Bolton
5th
Triathlon, Full distance - 226.2km
18°C
, Mild
9hrs 8mins
more race details

Adam's headline numbers

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~79
g
Carb per hour
Recommended 90g/h+
~662
ml
Fluid per hour
Recommended 250-750ml/h
~744
mg
Sodium per litre
Recommended 600-1000mg/L
~0.9
mg
Caffeine per kg
Recommended 3-6mg/kg

Adam'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)
Didn't pre-fuel
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Adam would benefit from taking in a final dose of carb <30 minutes before
Carb per hour
Recommended 90g/h+
~79
g
Adam's Energy Rating
7
/10
"I thought I fueled as best I could considering the dropped bottle."
Our thoughts

Like a lot of well-thought-out plans, this one didn’t go entirely as hoped. Unfortunately, Adam lost his bottle of concentrated gel mix early on into the bike leg due to a pothole. The bottle contained approximately nine PF 30 Gels, and he estimated he’d only consumed about two before dropping the bottle, meaning his only carb source remaining was from PF Carb & Electrolyte Drink Mix. Ever the pro, Adam didn’t panic and was able to adjust his strategy, opting for alternative sources of carbs by relying on the aid stations. Despite the dropped bottle, he still managed a decent carb intake to support his energy levels.

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.

Adam778mg/L
Adam 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 Adam’s losses are on the low side, getting his hydration strategy right is still important if he wants to perform at his best.

Learn more
Pre-loaded electrolytes
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T - 60mins: Drank ~500ml of strong electrolyte drink
Fluid per hour
Recommended 250-750ml/h
~662
ml
Sodium per litre
Recommended 600-1000mg/L
~744
mg
Adam's Hydration Rating
9
/10
"I didn’t feel dehydrated at any point. "
Our thoughts

Adam relied on fluids to meet his carb needs during the race, which can be a viable strategy if an athlete knows they can tolerate it well. Plus, the weather conditions were on the cooler side at this race, so it ended up working well for Adam. After preloading with PH 1500, he carried a bottle of PH 1500 on the bike and then used PF Carb & Electrolyte Drink Mix as his primary fuel source. Subsequently, he had sodium in all of his fluids, and even though he didn’t consume hardly any sodium on the run, Adam had front-loaded enough on the bike that he had replaced most of his losses and was sufficiently hydrated all the way until the end.

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
~0.9
mg
Our thoughts

Adam didn’t consume any caffeine on the bike and only had a small amount on the run through the energy drinks that he picked up from the aid stations. For future races, we would recommend he trials a higher caffeine dosage in training to be able to incorporate it into his race plan, allowing him to reap the ergogenic benefits that the stimulant provides.

How Adam hit his numbers

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

Adam's weapons of choice

Final thoughts

Adam's Satisfaction Rating
8
/10
For only my second full IRONMAN® event, I’m happy with my performance.
Adam
Despite the early setback of losing his concentrated bottle of gels, Adam adapted quickly and still hit decent numbers for his carb, sodium and fluid intake. Moving forward, using caffeine earlier in the race might be beneficial to support his performance, as well as carrying some backup gels in case of unfortunate situations like this race saw.
PF&H

Adam's full stats

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Overall
726g total carb
79g per hour
6,050ml total fluid
662ml per hour
4,500mg total sodium
493mg per hour
744mg
Sodium per litre
68mg total caffeine
0.9mg per kg
Bike and Run
Bike
Run

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 an adequate level of accuracy in the data collected and the numbers reported. The athlete manages to recall what they ate and drank including most specifics (brands flavours quantities plausible estimations of volumes). However there are estimations made within the data which affect the overall confidence level in the data reported.

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