Here is a way of doing ones own ratings that I came accross somewhere.

Get hold of the first 7-8 horses from anywhere e.g. Winnerinsix or pre-post market, Neurals ect.

Go to UniTAB & jot down their points rating for each horse.

Deduct one point off the lowest rated horse of our lowest rated selection, this is now the base figure that we deduct off all our runners.

Now deduct that figure off each of our horses, using the UniTAB ratings figure.

Once one has the differece which will be from 1 unwards, go the Ozracetools & use their excellent rating program set to 90% or less.
Example.
Say our six horses are 100 98 96 94 92 90 pts.
Now deduct 89pts (90-1) of each of the above.
Our rating new ratings figure now becomes.
11 9 7 5 3 1 Pts
Now enter this into the Ozracetools program, set the book percentage to say 90% or less & bingo , one has their own Ratings with prices.

Then bet the overs by dividing ones assesd price into ones base amount of say $10 e.g. say ones assesd price is $4.00 & todays horse is $8.00
$4.00 divided into $10.00 = $2.50 O/L for that horse
for a possible return of $25.
We are in effect betting the $8.00 horse as if it were $4.00 accessed chance.

Now do the same for the remaining selected horses that are paying overs

This process works well if the result goes our way.

The races that I have found best to target are races where the UniTAB has the whole field rated at 90pts plus.
This means the race Fav should find the overall field strength more challenging than usuall & the Fav does not seem to win as often in these races.
The prices are usually very good, which is what we want.

I find its a good idea to rate ones assessed Fav at a min of $4.00 , even though it may be rated less than this.
Otherwise the spread of money outlayed will be top heavy not allowing enough to go around on the others so as as to show an overall profit.

If one wishes to improve any ratings service, it can be done by weeding out
just 1 horse that one feels has a weak chance & re-set the market percentage to what they had originally , using the Ozracetools program.

This in effect, tightens up the market which means more selctions that qualify.
Therefore more winners & less runs of outs.
This works a treat if one can weed out the correct horse.

Cheers.

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Cheers.