: Make certain profit from sports betting by placing sure bets, sometimes also called arbitrage bets or arbitrage betting. Sure betting is placing one bet per each outcome with different bookmakers of a particular sports game or event. Since each outcome is backed with mathematical advantage, a win is guaranteed. The winning bet will cover all losing bets and the bettor can make a profit. Click on the calculator logo in the Sure bets section above, enter total amount you wish to bet, calculate your bet and place sure bets - bets you cannot lose with. If you want your stakes & winnings to be rounded up simply tick the box below the table. We only list sure bets for the next 7 days. Use the market discrepancies to your benefit with Odds Portal using sure bets and our betting odds monitoring tools. You might also be interested in Value bets.