Thread: Simple Ratings
View Single Post
  #35  
Old 20th April 2006, 03:24 PM
Chrome Prince Chrome Prince is offline
Member
 
Join Date: Jan 1970
Posts: 4,441
Default

Quote:
Originally Posted by salty
Chrome Prince

Could you work through an example, as I can't see where you got your second column of points from.

Thanks

Salty


Hi Salty,

Let's say we have used the rules to "modify" some set of ratings, be they Unitab or Techform or something else.

After applying the rules, there are amended or revised ratings.

101
99
97
96
95
94
93

What you do is now add up the DIFFERENCE in rating points between the bottom rated and the next highest. BUT you can only have a minimum of 1 point, so 0 = 1 point still.

Looking at the above scenario, start from the bottom and work up...

93 - 93 = 0, so 1 point (minimum)
94 - 93 = 1 point
95 - 93 = 2 points
96 - 93 = 3 points
etc etc
right up to the top rated

101 - 93 = 8 points.

So in this case the top rated horse is 8 points above the bottom rated.

Convert this to a percentage by dividing the points for each horse by the field total points.

convert this pecentage to a price by dividing 100 by the percentage.

We then have a field rated to 100% market.

This gives the hypothetically true odds and you work from there.

You can of course back the highest rated runners, providing they are over 100 after applying the rules.

Hope this helps.

This is actually just a quick way to get some prices, based on sound system rules. You are still getting ratings of a sort and if you look at how the selections perform AFTER applying the rules as opposed to using the initial ratings raw, you'll be pretty amazed
__________________
RaceCensus - powerful system testing software.
Now with over 429,000 Metropolitan, Provincial and Country races!
http://www.propun.com.au/horse_raci...ng_systems.html
*RaceCensus now updated to 31/12/2025
Video overview of RaceCensus here:
http://www.youtube.com/watch?v=W821YP_b0Pg
Reply With Quote