If you used this for say Football (Soccer)
At the end of a season you could have 2 teams with the same points
But if you had - For - this would be how many goals they have scored
Against - this would be how many goals they have had scored against them
Team a - For - 30 ----- Against - 10 - this would give them a difference of +20
Team b - For - 30 ----- Against - 14 - this would give them a difference of +16
So team A would be the winner
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