Becareful thanks heaps for responding but I don't understand the equation properly as I was ******** in maths and never paid attention. I especially don't understand what this means* and another question mate, is there any programs brought out for this as it would be a good idea for someone to do, not only for quinellas but also trifectas exactas and quaddies.

One other problem with doing this procedure would be that the tab odds are always changing and therefore so are the dividends for the quinellas.Can you bet oncourse for fixed quinella dividends as I know you can for doubles and allups. Cheers Plug