Amralfff1 asked, "What formula does the NSW TAB use to calculate Quinellas?"

Be careful what you ask for Amralfff1 - you might just get it.

Have a look at the discussion found under 'free exotic help' at the Forum sponsored http://www.capitalinfo.com.au which may save you from repeating Don Scotts' exotic bloopers.

NSW TAB Quinella dividend approximates are available on a grid display up until the jump.