Hi all!
Thank's for the help!
Darky, I do have one of Gary's books, liked one idea he talked about, ie. importance of weight on different distances. (not sure it was his idea though)
Could not find any reference to him on the web.
Crash, your idea sounds OK to me, I will work on it, I have the data to test it.
YoungBuck, your idea also makes sense but it would take a long time to run it through my database and create a new field marking the horses run, but once done, it will be easy to update as new data comes in.
Thank's again.
Try to avoid betting on losers!