If you're having doubts about a bet, check to see whether there's a higher chance of losing than winning. Usually, betting is a game of chance, so you can't be 100% certain that your bet will win. However, you can evaluate the risk of that bet to see if your winning chances are higher. For instance, parlay bets are risky as all your selections must be right before cashing out. The bad thing is that there is a lower chance of the bet winning because you combine different wagers.