I think that Thors benefited greatly by your horse clipping heals. That really allowed him to shoot up and totally take control of the race from the 3 path. But Thor was the best horse in that race on that day. I had him in the pick three only because I went 8 deep. The Sprint is always the hardest race--I always go back to Housebuster losing at like 3/5 when he stumbled at the start.