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, please see our sports rules here. If you need any further assistance, please see our contact details here. Related articles What's a match bet? Best odds guaranteed How do I place a forecast/tricast bet? What's 'betting without'? What are Spending Controls?