As of the end of the 2021–22 season, Minnesota leads the regular season series 49–29–1–4 while Chicago leads 12–3 in the playoffs. Chicago Blackhawks vs. St. Louis Blues The Blackhawks–Blues rivalry features the Chicago Blackhawks and St. Louis Blues. From to , the two teams have been in the same division together. However, the teams were placed into separate divisions for the season as a result of the COVID-19 pandemic. It is the most intense rivalry in terms of penalty minutes and fighting. At the height of the rivalry throughout the 1980s and early 1990s, it was common to go to a Chicago vs. St. Louis game and see a brawl break out. The most famous brawl of this era was the St. Patrick's Day Massacre. The rivalry cooled somewhat in the 2000s, but it heated back up in the 2010s, with both teams finding success in the early 2010s as well as Chicago losing the longtime division rivalry with the Detroit Red Wings as a result of the 2013–14 realignment. All six Sutter Brothers would play for this rivalry. In the 2010s, Chicago won the Stanley Cup three times and St. Louis once. Pacific Division The Pacific Division dates back to the 1974 formation of the Smythe Division, which from 1981 onward would contain the westernmost teams in the NHL. It became the Pacific Division in 1993. Anaheim Ducks vs. San Jose Sharks The Ducks–Sharks rivalry has been going since 1993 when the Ducks came into existence. The rivalry got heated when the two faced each other in the 2009 Stanley Cup playoffs. The Ducks won the series 4–2. Both teams met again in the 2018 playoffs, where the Sharks swept the Ducks 4–0 in the first round. As of the end of the 2021–22 NHL season, San Jose leads the regular season series 80–59–4–16 with a 6–4 playoff record against Anaheim. Battle of Alberta: Calgary Flames vs. Edmonton Oilers The Battle of Alberta is the bitter rivalry between the Calgary Flames and Edmonton Oilers. The two teams are based in the cities of Edmonton, the provincial capital of Alberta, and Calgary, the province's most populous city. Most often it is used to describe sporting events between the two cities, although this is not exclusive as the rivalry predates organized sports in Alberta. The rivalry peaked during the mid-late 1980s, as from 1983 to 1990 the Western Conference only