Lakers ML means you are betting on the Lakers to win the game.
Spread: Bet on a team based on a projected margin of victory or loss.
Lakers -3 means you are betting on the Lakers to win by at least 3 points. Simply subtract 3 points from the Lakers' final score—if they are still winning, you won the bet.
Celtics +3 means you are betting on the Celtics to lose by less than 3 points, or win the game. Simply add 3 points to the Celtics' final score—if they are now winning, you won the bet.
If the Lakers win by exactly 3 points, the bet is a push (tie).
Game Totals: Bet on the total score of a game to be over or under a certain amount. For sports like MMA, you are betting on the number of rounds the fight will last.
Over 210 means you are betting on the combined score of the Lakers/Celtics game to be over 210 points.
Under 210 means you are betting on the combined score to be less than 210 points.
If the combined score is exactly 210 points, the bet is a push (tie).
HOW TO READ ODDS
Negative odds mean that the team is the favorite. The more negative, the bigger the favorite.
Lakers -200 means the Lakers are favored.
For negative odds (favorite), -200 means you would need to bet $200 to win $100. You can bet any amount you want, but your risk/reward ratio is always 2:1.
Positive odds mean that the team is the underdog. The more positive, the bigger the underdog.
Celtics +200 means the Celtics are underdogs.
For positive odds (underdog), +200 means you would need to bet $100 to win $200. Again, you can bet any amount you want, but your risk/reward ratio is always 1:2.
You'll often see odds around +100. This means the bet is even money (1:1).