You don’t have layers of complexity to fight through to see if your prediction is a positive expected value move (one that is going to make you money). With some simple mathematical calculations, you can figure out whether or not there is value in a bet. Even if you don’t like math and would prefer not to use it when assessing value and making your picks, it’s still much easier to “eyeball” value with moneyline bets because of the simplicity.
Let's use this formula to calculate the implied probability of the Celtics winning their game against the Grizzlies. We know the odds are -240, which means we'd have to risk $240 for a total potential return of $340 (the initial stake plus the $100 winnings). So the calculation here is $240 divided by $340. This gives us an implied probability of 0.7059.
Point spread and handicap betting are one of the most popular forms of sports bets that you can place. The reason we say "one" of the most popular forms instead of "two" is that these bets are effectively the same thing. These bets are a lot of fun because they allow you to root for teams that you still think are going to lose. With point spread and handicap bets, the team you're betting on can lose the game, and you can still win your bet. In contrast, the team you are betting on can win the game, and you can still lose your bet. Now that we've thoroughly confused you let's build up your knowledge, so you're an expert on the bet type. This is like sports betting boot camp; we confuse you and break you down and then build you back up as a betting machine!
That was all before Charles McNeil, a math teacher from Chicago, invented the concept of the point spread. An avid gambler, McNeil created what he called “wholesaling odds” and started his own bookmaking operation in the 1940s. He started out offering this new style of betting on football, but his business model grew to include basketball. McNeil changed the way sports betting was done, and his legacy lives on today in what we now call the point spread.