Have mercy!

O Canada. Only in Canada.

National Post

Ottawa children’s soccer league has introduced a rule that says any team that wins a game by more than five points will lose by default.

The Gloucester Dragons Recreational Soccer league’s newly implemented edict is intended to dissuade a runaway game in favour of sportsmanship. The rule replaces its five-point mercy regulation, whereby any points scored beyond a five-point differential would not be registered.
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According to the league’s new rules, coaches of stronger teams are encouraged to deter runaway games by rotating players out of their usual positions, ensuring players pass the ball around, asking players to kick with the weaker foot, taking players off the field and encouraging players to score from farther away.
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...The new rule, suggested by “involved parents,” is a temporary measure that will be replaced by a pre-season skill assessment to make fair teams.

A pre-season skill assessment to make fair teams will be a like a horse race where the winner is the horse that comes in last. There's an incentive not to do your best on the skill assessment in order to be matched