In volleyball betting, a handicap of -1.5 means that the team you are betting on must win by at least 2 points for your bet to be successful. This type of bet levels the playing field by giving one team a virtual disadvantage, making the match more competitive for betting purposes. If the favored team wins 3-1, for example, they would cover the -1.5 handicap, but if they win 3-2, they would not.
