Kate Avery
Ultra Trail Australia
Kate's headline numbers
Kate'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.
With races starting early in the morning, it can be challenging to consume food prior without sacrificing sleep and having enough time for food to digest before the race starts. After carb-loading in the days leading up to the event, completing this with a carb-rich dinner the night before, Kate managed to get down a couple of slices of toast to further top up her glycogen stores. Kate managed her energy levels well by consistently consuming carbohydrates throughout the race. Her fueling strategy was simple, using PF 90 Gels as her primary source of carbs and supplementing this with PF Carb and Electrolyte Drink Mix.
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.
Despite feeling as though she could have drank more throughout the race, the manageable conditions helped Kate avoid any dehydration-related symptoms. Her fluid intake was on the lower end of the recommended range for a race of this distance and could be increased in the future, particularly during warmer temperatures. It would also be helpful for Kate to carry some Electrolyte Capsules to supplement the plain water she picks up at aid stations, and avoid over-diluting the average sodium concentration of her drinks. Without knowing her exact sweat sodium concentration, increasing the ‘saltiness’ of her drinks can sometimes help increase the thirst response which may have helped Kate drink a little more. Getting Sweat Tested would be the next step for Kate to optimise and have confidence in her hydration strategy.
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.
Despite only averaging ~1.7mg/kg of caffeine during the race itself, Kate consumed 400mg of caffeine (~6.8mg/kg) on the morning of the race through caffeine pills. It’s almost certain that this would have been in her system during the race and helped her reap the ergogenic benefits of the stimulant, lowering her levels of perceived exertion and keeping fatigue at bay. Front-loading caffeine so that it peaks before the race is a strategy that works for some athletes depending on their personal tolerance and the race duration. Kate should continue to monitor this in both training and races to ensure she is getting the most out of the stimulant, as she did experience a dip in energy towards the latter part of the race. It might be beneficial to spread out her caffeine intake, or add a top-up later in the race to keep her blood caffeine levels high throughout the race.
How Kate hit her numbers
Here's everything that Kate ate and drank on the day...
Kate's weapons of choice
Final thoughts
Kate's full stats
Data Confidence?
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.