penalty-shot rounds, the shootout continues round by round, until one team scores while the other team fails to score. During each period, there is one 70-second "power break" used to display commercials; each commercial is played after the first stoppage of play at least 10 minutes into the period. Power breaks do not, however, take place directly after a goal, penalty shot, icing call or during a powerplay. Playoff games In the event of a tied game during the playoffs, additional 20-minute overtime periods are played perpetually until one team scores. Unlike in the regular season, playoff overtime periods are played five-on-five. Only one game in Sweden has ever surpassed four full overtime periods, and no SHL games have surpassed three full overtime periods. The longest SHL game was the first game of the 1997 Swedish Championship semifinals, played on 23 March 1997 between Leksands IF and Färjestad BK. 6,012 spectators saw Andreas Karlsson score the game-winning goal for Leksand after 59 minutes of overtime (almost three full overtime periods). See Longest ice hockey games in Sweden for other games. SHL games are played on an ice hockey rink, which is rectangular ice rink with rounded corners and surrounded by a wall. It measures 30 by 60 meters (98.42 by 196.85 ft), conforming to international standards. Teams Counting from the formation of the SHL in 1975, Färjestad BK is the most successful team with ten Swedish Championship titles. Brynäs IF and Djurgårdens IF are tied for the second most successful team with six championship titles. Counting from 1922, when the first Swedish championships were played, Djurgårdens IF is the most successful team with sixteen championship titles, followed by Brynäs IF with thirteen, as well as Färjestad BK with ten and IK Göta with nine. 2021–22 season Season structure The SHL season is divided into a regular season from late September through the beginning of March, when teams play against each other in a pre-defined schedule, and a playoffs from March to April, which is an elimination tournament where two teams play against each other to win a best-of-seven series in order to advance to the next round. The final remaining team is crowned the Swedish champion, or Svenska mästare in Swedish, and receives the Le Mat Trophy. Regular season The regular season is a round-robin, where each team plays 52 games. Points are awarded for each game, where three points