You get charged commission on winnings You get pro-rata points for net wins or losses for every event You get a reduced commission rate depending on which range of points you are in. Each week you lose 15% of your points as of Sunday night ("decay") unless you have booked a holiday for the following week.
http://sports.betfair.com/aboutUs/Betfair.Charges/You get charged commission on winningsYou get pro-rata points for net wins or losses for every eventYou get a reduced commission rate depending on which range of points you are in.Each week you lose 1