your concerns are justified as they do pop that horse very infrequently at long odds
of course st pierre is usually long odds
look at how the mile went, the two favs battled each other the 9 angles out and is flat
the 10 saves all the ground and slides up the rail
of course that is how longshot wins, not like he is going to go first over and beat them
i agree it looks a bit "off" but i think it was just a perfect circumstances
and he did win his last start in a similar way
of course the odds are based on the bettors wagering