SP is an abbreviation for ‘Starting Price’. Traditionally in the UK the Starting Price for any horse in any race has been determined by the on-course bookies who determine an aggregate price or odds. Not surprisingly, their Starting Price is edged towards them making a profit.
There has recently been a lot of debate across the industry as to whether this is a fair way of calculating the SP. Many people argue that the SP should account for bets placed on the selection off-course (in betting shops and online) as well.
Betfair’s Starting Price is different. It’s based on bets placed by both backers and layers in any market – there is no margin for profit built in - and that’s why we think it will give you much better odds.
Betfair SP is available on place markets in addition to win markets, further extending your betting options.