
Dougal Allan
Kathmandu Coast to Coast
Dougal's headline numbers
Dougal'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.
Dougal went into his 10th Kathmandu Coast to Coast race knowing he could tolerate a high volume of carbs because of the extensive gut training he has undergone through his 15 years of ultra endurance racing. Each discipline of this event (250.2km total made up by 2.2km run, 55km bike, 33km run, 115km bike, 30km paddle and 30km bike to the finish) has different durations, mechanics and logistics, so Dougal had different fueling plans for each one. Throughout, his fuel was primarily provided by Carb & Electrolyte Drink Mix and PF 30 Gels. Dougal took on ~110g/h on the first bike section, and then brought this down to ~89g/h on the run. The 33km run posed an unexpected challenge when he fell and broke his ankle, but determined and unaware of the severity of his injury, Dougal powered on. He says he wished he’d carried more fuel on the run as he had to ration his gels for the last hour when his ankle forced him to slow down. When he began to crave real food at the end of the run, he grabbed some boiled potatoes from an aid station, satiating his hunger before the kayak leg. While paddling 30km, Dougal took on an impressive ~172g/h; this was beneficial to front-load his fuel for the final bike leg where his intake dropped back down to ~91g/h. Overall, Dougal consumed a very impressive carb intake. Going forward, he could consider having a contingency plan of different fuel options and greater quantities to be able to prevent the feeling of hunger which can come from eating purely simple sugars over a long duration.
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.
Staying hydrated during an event of this duration and intensity is critical to succeeding, even when the temperatures aren’t high. Dougal knows he is usually a heavy sweater from sweat rate testing, but he classed his sweat rate as moderate in this event due to the mild conditions. To keep on top of his losses he consumed ~625ml/h which predominantly came from Carb & Electrolyte Drink Mix, cola and water. To maintain his relative sodium concentration when consuming fluids without much sodium, Dougal had 12 Electrolyte Capsules spaced throughout the race. This individualised strategy meant that he finished the event without too much dehydration, evidenced by having to pee soon after finishing.
While Dougal did experience severe cramps in his left adductor ~3 hours into the long run causing him to stop to stretch, he did not attribute these to fluid and electrolyte balance but instead the neuromuscular theory of muscle cramps. This is potentially due to his broken ankle changing his gait and increasing the load through his left leg.
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.
Dougal distributed his caffeine intake sensibly through the race with regular doses coming from chews and gels. The recommended intake for endurance events is 3-6mg/kg, which Dougal’s intake fell within. This total intake via consistent doses would have helped to support his mental alertness and perception of effort across the event.
How Dougal hit his numbers
Here's everything that Dougal ate and drank on the day...
Dougal's weapons of choice
Final thoughts
Dougal'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.