It’s the ‘buy low, sell high’ of the sports betting world - and you know the guaranteed amount of profit you’re going to make before a match even kicks off.īecause arbitrage bets guarantee a profit, they’re often referred to as ‘sure bets’ - especially throughout Europe. Put simply: with arbing, you bet on one site at a high price and you bet against that outcome on an exchange at a lower price. The invention of betting exchanges has allowed us to bet against outcomes, as well as for them, making arbitrage easy for the masses. This is possible because bookmakers have different opinions (and therefore different odds) on the probability of an event. Arbitrage betting involves covering all results of a sporting event to make a profit regardless of its outcome.