Four years ago I kept a record of "Market Movers" but that was too hit n miss.
I've done the Stoute and other Nmkt trainer maiden races and there is little profit to be made in the long run as the winning prices are often odds on low.
I've done the race stats for the better class race meetings covering 30 years and found that indicated more than one runner. Backing 5 runners in a race doesn't prove profitable, so whilst the stats are sometimes useful they are not the end all.
Studied Michael Stoute methods in detail 2 years ago and following that he has had two disasterious seasons since and no profit there either.
Also did Andrew Balding last year and whilst some success has been made, it's not life changing.
Generally I stick with Nmkt trainers but Mark Johnston and Richard Hannon are others to follow.
The Godolphin set up has taken on other trainers with their 2yo's and Johnston, Hannon, Richard Fahey & Co are probably the ones to concentrate on.
There is no simple way to win by betting on horses. It is hard and time consuming work but enjoyable in parts.
It's all about looking for an edge or obtaining good stable information.