Every sportsbook will charge you a fee to place a bet with them, and this is known as “vig” – short for “vigorish”. Vig may also be called “juice” (or the cut, or the take) and in European-based sportsbooks, “margin” – but it is all the same thing.
Think of it as the price you have to pay a sportsbook to play.
Vig is built in to the odds, but it can be mathematically worked out – and often it pays to do so because some sportsbook will charge a lot more juice than others.
However, the outliers charging way more vig than others can easily be weeded out using our odds comparison tool.