Thanks Partypooper and Crash,
I appreciate your replies but I obviously didn't make whinge clear in my original ramblings. Please put it down to tears of frustration. My aim was not to try to find the best odds, if it were I would adopt your strategies or even check Betfair. Rather, my aim was to determine the strength of support for the favourite as indicated by the shortness of its price compared with its p/p price.
The research I have done on previous race results and divs can obviously only be with final divs but it shows an amazingly high strike rate where my selection's final div was less than 66.66% of the p/p as published in the Sportsman. These are the ones on which I plonk. My spreadsheet is set up to highlight the selections that meet this criterion. All I need to do is keep typing in the div as it changes. Yesterday's result that caused the angst, Burdekin Blues, did not trigger the highlight at $1.70 but would have at its eventual div of $1.60.
Hey, it's one race. I'm sure there will be another next weekend.
Cheers and Thanks again
Ron