Lol there's a very straightforward way to verify this since that kind of physical exertion produces reciprocal changes in the body. So are there any chess pros that have the physique of Phelps? Hmm
Yeah maybe. I don’t really know what you mean then, Because there isn’t really a “typical” physique for people that burn insane amounts of calories per day. Power lifters and marathon runners both regularly burn calories in high ranges like that yet their physiques are totally different.