I was never a gambler,so i am not clear on how it works. say you have Jets -3 Raiders +3. I know the Jets have to win by 4 atleast. But what if someone picks the raiders with the +3? How is the +3 covered? sorry for the dumb question.
easy -- when the game starts the Raiders are up 3-0 so if the final score is jets 21- raiders 20 actual score -- with the p3 you would win
Think of it as adding the points to the final score of the underdog and from there compare the scores so as another said Jets 23 Raiders 21 +3 Raiders would win with the spread