@crossingthethreshold In the National Hockey League, you play until you collapse. I remember Pittsburgh and Philadelphia going seven OT periods in a playoff game.
@crossingthethreshold Note, this is only during the playoffs in a winner take all best of seven series. You need a winner in these cases. But, this differs from the regular season where they got rid of ties about a decade ago. Instead, there's a five minute OT period that's three-on-three (more open ice, thus more scoring chances than five-on-five). If that's not successful, then there's a shootout similar to football. They try to save these players' bodies with less on the line.
@skoobz Thank you for the explanation. I don’t know anything about ice hockey and have only watched games for a few minutes.