At a site that offers a free play bonus, you'd bet $100 free play on the Grizzlies at +210. At another site, where you have a cash balance, you bet $150 cash on the Celtics at -240. If the Grizzlies won, you'd win $210 cash from your free play but lose your $150 cash. That's a profit of $60. If the Celtics won, you'd win $62.51 from your cash bet and lose only your free play credit. That's a profit of $62.51
Essentially, a moneyline bet is a bet on which team is going to win the game. There is no point spread or other handicap for either team, so if you pick a team and it scores more points than the other team then you win. Obviously there has to be a catch, though, or the bet would be way too simple. The sportsbooks balance their risk by setting different prices on each team. You win a smaller amount than you bet if you pick the favorite, and you generally win more than you bet if you pick the underdog. The stronger the favorite the less you will win, and vice versa.
In the United States, most bookmakers use the moneyline format to express the odds they offer for wagers. Thus, moneyline odds are also commonly referred to as American odds. They can be either a positive number or a negative number. A positive number shows how much profit a winning wager of $100 would make, while a negative number shows how much needs to be staked to win $100.
The last type of handicap bet that we want to talk about is an Asian handicap bet. Don't worry, you don't have to be Asian to place this bet; it's open to everyone. This form of handicap bet is set up through the use of whole, and half number point spreads to ensure that no draws are possible. The difference between Asian handicap bets and no draw handicap bets is that the Asian handicap bets have the possibility of what is called a split handicap outcome. Your bet will have a whole number and a half number line that are treated effectively as two separate bets, but all in the same bet.
In this instance, the Dodgers are the favored team, as signified by the negative numeral. It would cost you $130 in order to collect a $100 payout on a Dodgers victory (plus the original wager of $130). But if you bet $100 on the Cubs, you'd collect $120 if they win (plus the original wager). In other words, you'll have to wager more money on Los Angeles than you would Chicago in order collect $100 on a bet.
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.