Example from Sandown today -


Race 5 Sandown - Philda - final prices Betfair 4.65 * IAS 3.80.

The Betfair price was 16.67 % higher than totes.

However Betfair final prices can be misleading as they dont represent the range of odds available while the market is 'buidling'.

Race 8 Sandown - Prevaricate - final prices Betfair 16.76 * IAS 14.00.

In this case the Betfair price was 10.40% lower than totes.

The IAS prices are shown for comparison and also they have similar considerations - i.e. the price changes during betting.