If the Fav is 1.80 it will break even , if fav gets up.

You will also break even if the 3rd Fav is paying 5.00

You have to determine what is value compared to the size of the field & what the other 3 in the market are paying.

Everything is comparitive in racing.

There is no single figure that says this is value.

I am assuming that you are punters therefore spoon feeding is not required.

Cheers.

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Cheers.