Neil Eddy
IRONMAN® World Championships
Neil's headline numbers
Neil'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.
Neil has been working hard over the past few seasons to build his tolerance to carbohydrates by regularly training his gut. This preparation ensured that on race day, he could comfortably consume a high volume of carbs without experiencing any gastrointestinal issues. On the bike, Neil mixed nine PF 30 Gels with a small amount of water in his aero bottle, which he consumed alongside a PF 30 Caffeine Gel, bringing his average intake to 99g of carb per hour. While this intake was slightly lower than at Challenge Roth, he managed to increase his run intake by 9% compared to Roth - 81g/h in Kona compared to 74g/h at Roth - despite struggling with some discomfort through the first few miles. Having his nutrition conveniently available in his aero bottle and running belt allowed him to ‘mentally park’ his fueling strategy and focus on the race itself during those later brutal miles in Kona.
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.
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 Neil’s losses are Very High (1,492mg/L), nailing his hydration strategy becomes especially crucial when it’s hot and/or humid.
Learn moreNeil knows the value of an appropriate hydration strategy as a high salty sweater who has battled hydration-related issues prior to joining the PF&H squad. On the bike, he carried highly concentrated drinks, one containing six PH 1500 (Drink Mix) packets, and two additional bottles with a further three PH 1500 (Drink Mix) packets. He diluted these fluids with water from nine bottles he collected from the aid stations, ensuring the relative sodium concentration closely matched his sweat sodium concentration. Neil went to the medical tent post-race to get checked over and found he had lost ~3.1kg which equated to ~4% reduction in body weight. This highlights the extreme impact of heat on sweat rate and performance, as a 2% body weight loss can impair performance, even for someone as familiar with racing in Kona as Neil.
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.
Neil had a solid caffeine intake. Consuming a PF 30 Caffeine Gel before the race and during both the run and bike. These well-timed doses ensured he would have felt the ergogenic benefits of caffeine throughout the entirety of the race.
How Neil hit his numbers
Here's everything that Neil ate and drank on the day...
Neil's weapons of choice
Final thoughts
Neil's full stats
Data Confidence?
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.