Teams in the National Hockey League (NHL) have competed in 18 outdoor games since the beginning of the 2003-2004 season. The outdoor games were made popular by the ‘Cold War’ ice hockey game between Michigan State University and the University of Michigan in October of 2001. The game was hosted at Spartan Stadium and hosted 74,544 fans, filled to 103.4% capacity. It was a then-world record for the largest crowd at an ice hockey game, a record that would stand until The Big Chill at the Big House, a rematch in Ann Arbor that would raise the bar to 104,173 in December of 2010. The NHL would not take the record for the largest attended ice hockey game until 2014, when they would host their own game at the Big House. The NHL has spread the games out with 16 different teams hosting outdoor games and another 5 participating in these major events in 17 different venues (Yankee Stadium was the only repeat venue hosting two Stadium Series games in 2014).