The aquatic marathon is a 10k open water event. The differences between the aquatic marathon and the pool events is mainly the climate. We are always dealing with exterior factors from nature. Lot of time we have to swim in really cold or very hot water. The environment isn’t controlled so there’s a lot of wind or the sea isn’t moving. And also the kilometres, as the longest Olympic pool event is 800m and the Olympic Aquatic Marathon is 10k. Pool swimmers are very thin and are stronger. Aquatic marathon swimmers, because they have to train a lot, they end up losing a bit of muscle mass. So we need to have a bit more fat, although that’s not the case with me. But a lot of swimmer can have a little bit more fat to deal with the cold and as its a very exhausting event. But I believe that to swim, or for any other sport, the athlete that is taller and leaner will always have the advantage. Where we are totally exposed to the environment with lots of sun and salty water, we will dehydrate a lot. We lose weight and muscle mass and the damage is very big. I tend to lose 2 kilos during the event if I don’t eat or hydrate well. In the middle of the event, the heart beats at around 140-150 and at the end of the event it goes to 190-200. I believe the aquatic marathon swimmer work the upper body, abdomen, trapezius and arms more. At the end of the event, the arms and abdomen are more tired than legs. The legs are tired because you just finished doing a sprint, but when you get to hotel and relax, what hurts most is the arms. I think that in the marathon events you have to use your mind more than in the pool. The pool events are more automatic. The rhythm that you train you can do it at the event. While the marathon event you have to deal with nature, physical contact and deal with time. Every event is different. Your mind has to be well. A lot of times it’s very cold as you have events with the water as 16/17 degrees and very windy. A lot of times during the event we think of giving up. You deal with a lot of kicks, elbows and pulling of legs. You have to be mentally prepared to let those things slide and just think about the event. believe that the start of the aquatic marathon doesn’t make much of a difference. For me it’s better to start a little behind and to have 2 hours of the event ahead. During the Marathon event we have four laps of 2.5k and in the middle the marshals stay there with a bottle of water to hydrate you. We stop, just for a few seconds, as we try to lose the minimum amount of time possible. We drink water or take a carbohydrate gel. Anything. The last kilometre is the most important of the event. So in the last kilometre, everyone tries to give their maximum. This moment is the time for legs to remember that they exist. Because in the beginning of the event we forget the legs, so in this last kilometre we have to kick more. I have lost marathon events by the millisecond and I also have won by the millisecond.