A very good shot (did you use a bit of fill flash?) and my only complaint is that in this shot, he doesn't look like he's winning anything, as in -- where's the finish line? But that's my only complaint. A fine photo. Love his expression, and I like how you cropped the shot. 8
Man this guy trains a lot by the looks of it :) Good action shot, free space in the direction he is running, maybe a touch more might have given him more movement space. Also the face area is a touch on the soft side. Otherwise good work.