Reasons:
One is placing over Two for the width starting with the chest floor all the way back to the width in the hocks, a powerful masculine buck that is having to yield dairy character to the white and brown buck in Second.

This Nubian buck (Second place) is a more dairy buck with smoother blending from the neck into the withers/shoulders and brisket, and width in the rump that is more level from thurl to thurl, standing on stronger pasterns, he is yielding width between the hock to the black and white Nubian in Third that is showing a lot of breed character in his head and ears.