I personally always use decimal odds when using betting sites. Check out our full SIA review here for more info on the sportsbook. In the examples below I will be using odds from, our top rated betting site for Canadian. The decimal odds format is the most commonly used here in Canada, but you will also see American odds and fractional odds used around the internet and depending on the type of bet so it’s important to understand all three formats when betting online. There are three main sports betting odds formats that are widely used: decimal, american and fractional. It’s critical to understand how to read betting odds in order to weigh this risk vs reward, which is really what sports betting is when you get right down to it. The odds determine how much money you are able to win relative to how much you have to risk on a certain outcome. No, you need to win more “money” than you lose. You’ll notice I didn’t say you need to win more “bets” than you lose. To bet a profitable bettor you have to win more money than you lose.