he is skinny.
I gave him a piggy back once. I would estimate 155lbs
OP your a facking idiot. How the hell is anybody besides the man himself supposed to know what he weighs? That said, I doubt he weighs himself on his bathroom scales every morning like half this board.
He doesn't weigh 137. At 6'3, 137 is just too low, probably more around 1:45.
He stays very light because of his INCREDIBLY skinny legs. I mean seriously he has no calves. As a white 1500m runner my calves are literally 5x larger and probably weigh a lot.
Skinny calves are directly proportional to athletic ability. Sorry bro.
This guy has pretty decently sized calf muscles for his size. And he's a fair runner I've heard.