


Sabastian has always had a high tolerance to fueling — it has never been a performance limitation. And yet, several months of testing, analyzing, and refining his fueling protocol meant being able to increase his race day carbohydrate target. It was a plan tailored to his body and his goal.
In spite of his excellent tolerance, alongside the testing, Maurten nutritionists developed a personalized gut-training plan and a race-day fueling protocol to enhance and increase his ability to utilize the carbohydrates he consumed on race day. He took a Maurten Gel before long sessions and Maurten Drink Mix at set intervals during training runs — mimicking his exact race-day schedule. This was aimed at progressively conditioning his gut and instilling good training habits.
At the Berlin Marathon in 2025, Sabastian had a target of around 105 grams of carbohydrates per hour. In London this increased to 115 grams, with a total race goal of 230 grams — enough to fuel a sub-2 effort.
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