tubby its my own personal rating system taking into account all the factors..including points for there last 4 runs.,...you need to read dons scott method..
check him out he's great..
If you can take a look at some of sportz ratings idea's and Xpt ..there ratings systems are easy to use and work very well,,
if you search the archives you'll find them,

remember though ratings are always different...
eg. i rate Bowman and Seamer higher than Beadman....some people just go by the winning percentages for each state they are running in..but that can be misleading..
ratings only give me an idea for my multis...and i use only as a guide..

speedmaps and video study i've found is what has made me a more consistant winner..

Diamondsontheinside is an example.....his record on paper is outstanding but his last run on video i thought wasnt much chop,,,he had to work real hard to win that and to me looked over the top,,,he did cop interference on the weekend but he was never going to win....I even mentioned Willy not overly pleasing me with his last run....hmm and Face value..and Florigum.
maybe i should be laying horses ..
what do you rekon Mark ? betfair they way to go ?