Sure odds, often referred to as "arbitrage betting," is a strategy that allows bettors to guarantee a profit by placing bets on all possible outcomes of an event across different bookmakers. By exploiting discrepancies in odds, bettors can ensure that regardless of the outcome, their returns exceed their total stake. This method requires careful calculation and quick execution, as odds can change rapidly. While it offers a low-risk opportunity for profit, it demands significant time and effort to identify suitable betting opportunities and may attract scrutiny from bookmakers.