Yup that helps garyf, so over time you can see any trends and bet/not bet or stake accordingly.

I might start doing the same with regards to my ratings now, although would take some time before the data becomes meaningful. I guess it's important to record the actual conditions/variables of the race to use in filtering. Ratings take care of the horse/jockey/trainer side of things but have to be mindful of how well those ratings reply to specific venues, distances, conditions and field size.

Thanks for the reply and explanation.