Great shot. I actually like the blur in this, it gives the sense of speed really well. Fits the challenge both because there are 3 crossing the line, and #3 has already won. A definate 10 :)
Really should have had #3 at the finish line. Keeping the three behind still in the shot. Chopping off the winner's head is a big detraction to this shot. I like that you used a shutter speed that still conveyed the speed of the dogs.
Clearly dog three is the main subject in the photo but we don’t have a good view of him, dark and the head is chopped off. The photo also seems just a bit blurred.