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Nice idea. But. I don't have that kind of time and I'm not sure I would enjoy the game as much with the necessary extra work. I'm still trying to find enough time to really examine daily result charts.
I know that favorites are created by the public--usually based on a top Beyer fig, a good recent performance, or public selector. I am willing to look behind the obvious--trouble lines, previous wins at the distance, etc.
Still, unless Secretariat is running against the average claimer, I never understand a reason for odds of 3-5, 0r 4-5.
I set my target odds at 6-1. If my selection is a 'move,' I'm confident when odds are around 9-1 (the average). Selections longer than 15-1 require a smaller bet.
What are your good odds? However you arrive at a figure, at least have an idea of what odds are typical for your play.