Outdoor games have been held by many leagues around the world. The Swiss league's SCL Tigers hosted SC Bern in an outdoor game to celebrate the 100th Tigers–Bern Derby in 2007. In 2009, Swedish clubs Frölunda HC and Färjestads BK played a game at Ullevi. The game broke the former European league-game record for attendance at that time with a crowd of 31,144 (beaten in February 2011 when Jokerit and HIFK played in front of 36,644 spectators). The game also broke the Swedish record crowd of 23,192, set in the same stadium in 1962. The current world record for attendance at a hockey game was set in December 2010, in an NCAA game between the same two teams that participated in the Cold War. In this game, Michigan hosted Michigan State in an event known as The Big Chill at the Big House. The game had an announced attendance of 113,411 spectators, but Guinness World Records certified the attendance as 104,173 based on tickets scanned. The record had previously been set at the opening game of the 2010 IIHF World Championship, in which the hosting Germans defeated the United States 2–1 before a then-record 77,803 fans. Although the game was held at Veltins-Arena in Gelsenkirchen, it was not technically an outdoor game, as the stadium's retractable roof was closed due to International Ice Hockey Federation regulations. In 2010, Färjestad and Frölunda again played an outdoor game against each other, this time in Karlstad. 15,274 spectators saw Färjestad win the game 5–2.
