Thanks for hat Puntz, I'll have to study that , the old grey matter not as quick as it used to be you know!

evajb001 Thats great just about exactly what I was after, gets slightly more complicated in that I have a fixed aim to win each race i.e. Aim to win say $20 per race, so race 1 main pick is@ $5 , saver pick is@ say, $3, both lose , race 2 ATW is now $40 + losses on race 1 (main pick say $6) and the saver on pick 2 @say, $4 etc etc.

What I need is the formula (if there is one) to work out the stakes.

I've probably made that sound much more complicated, I'm famous for that.