Have you ever heard of moneyline betting? It's an American term that's traditionally associated with betting on the major US sports. These wagers are available in other parts of the world too, but they're typically referred to as win bets. The same principle applies though. When you correctly select which team will win a match, you'll get paid out at the relevant odds.
You see, people too frequently get caught up on their win-loss rate, which actually has no real effect on their bottom line. You can win more bets than you lose and still be losing money. On the other side of things, you can lose more bets than you win and be wildly profitable at sports betting. It all comes down to successfully finding value and pouncing on it when you see it.
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.