Run Rule
A game ends early when one team leads by enough runs.
How it actually works. In Little League the standard is a ten-run lead after four innings, or three and a half if the home team leads. Travel organizations set their own, commonly fifteen after three and ten after four in pool play.
Why it is done, and when it is wrong. It is a competition rule rather than a kindness rule: it protects arms and schedules at tournaments where teams play three games in a day. Check the specific tournament's version, because it decides how a game is managed from the second inning onward.
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