Hi Michael,
One method to capitalise on ones place bets is to divide ones bank by say 13

Now divide the price of the horse into that base figure.

e.g. bank $1000 / 13 = 77 Base amount.
Divide horses price into this base amount
If paying $1.30 / 77 = 59.23 O/L = Ret 77

If paying $2.30 / 77 = 33.47 O/L = Ret 77

What this does, it places more on the lower priced runners & less on the longer priced runners.
You probable already observed that it seems like the shorter priced horses tend to dominate.

These fractional amounts are easily catered to with Betfair by using one of the free betting tools such as Race Trader Pro. which gets under the Betfair min.

I have found Betfair prices in general , are better than the TABs.
Also one can calculate ones bets to return & not rely on the TAB price which could be seen as a lottery as to what ones div is going to be.

If the price on Betfair is a lot lower than the TAB , you can almost guarantee its going to run a place.

You will see over 100 bets, that the returns are usually greater with this procedure.

Cheers.

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Cheers.