What does SP stand for? SP stands for starting price and refers to the odds of a selection when the race starts. You have the choice of taking the SP or your horse’s current odds at the time you place your bet. For more information, see our general rules here. If you need any further assistance, please see our contact details here. Related articles What happens if my selection refuses to run? Virgin Bet FIVES Race card jargon buster Best odds guaranteed What's 'betting without'?