Welcome to a new section of the column: Niche Sports Rules. Rule #1 comes from the MLB, where it is possible to hit a walk-off home run and still lose the game. The rule reads that, in the event that a base runner passes a preceding teammate during live play, the overtaking runner will be deemed out immediately upon doing so, regardless of intent.​ Consider a base runner on first base with one out: the batter launches a high fly ball to right field that barely clears the wall