Here`s a plan that picks heaps of winners.
But patience & disciplin is required.

1)Follow either the Pre-post Fav or the TAB Fav .

2)Wait for a Fav to get up before one starts betting bet ,once the next fav wins for that venue, stop betting on that venue for the rest of the day.
3)Do the same proceedure for all venues.

This system is making the presumption most venues get 2 favs up out of say 8 races, this equals 25% the average is 30% ,the question is ,which races to bet on .
The answer is the next one, once a winner has been established.

Sometimes no favs get up at all at a venue, thats fine by us because we were not on any of them.
Sometimes only one Fav gets up all day ,but that could be in the last half of the day ,so no real damage done .

You will find that it is very rare that a venue gets one winning Fav only, for the day.

Usually its either non or 2+ winning favs for that venue.

One could bet to price to win say $20.
If you get to race 8 with still no winner ,do not carry losses over to the next day or venue.

It will be rare that you dont strike the winner for each venue for the day.

If you see a odds on horse that it has selected, its best to treat it as a 2/1 shot ,if you are betting to prices.

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Cheers.