Elite runners tend to burn much less than normal runners over the same distance, since they are typically lighter and more efficient.
This race didn't follow the rules so he could do whatever he wanted. Under official rules, you can have a custom drink placed on a table, which you run by and pick up yourself. Most marathons with an elite wave do this for elite runners. Nobody can hand you your drink.
However, it is not common to have very calorie-dense drinks because it is just not necessary over that distance. You want a little bit of carbohydrate so that you don't deplete your glycogen stores or get low blood sugar. That is about it. So most runners will consume maybe 200-300 calories during a marathon. Elite runners will typically consume less, again since they are more efficient.
This race didn't follow the rules so he could do whatever he wanted. Under official rules, you can have a custom drink placed on a table, which you run by and pick up yourself. Most marathons with an elite wave do this for elite runners. Nobody can hand you your drink.
However, it is not common to have very calorie-dense drinks because it is just not necessary over that distance. You want a little bit of carbohydrate so that you don't deplete your glycogen stores or get low blood sugar. That is about it. So most runners will consume maybe 200-300 calories during a marathon. Elite runners will typically consume less, again since they are more efficient.