The thing is , these horses are not machines or computer programs.

If you have found an animal underserving of being well up in the Market , then you have found a betting opportunity.
If after an event , an animal fails to perform up to expectations, there must have been a reason.
Perhaps Punters missed it, or , more likely , there was an unforseeable situation that occurred.
Sometimes the Steward Report contains some sort of explanation of poor performances.

p.s. please don't hit me