How the spreads work:
If the spread is negative (i.e., -2.5),the team on the RIGHT has to win by at least 2.5 points to win the bet. The team on the LEFT wins the bet if they win the game out-right OR the other team wins, but doesn't score at least 2.5 points more than the other team.
If the spread is positive (i.e., 4.5),the team on the LEFT has to win by at least 4.5 points to win the bet. The team on the RIGHT wins the bet if they win the game out-right OR the other team wins, but doesn't score at least 4.5 points more than the other team.