With the Bruins Stanley Cup victory, Boston's four major teams have now won seven championships in the last ten years. More remarkable is the fact that all four teams have won in the past six years. No other city comes close to matching this feat. All four Philadelphia pro teams won titles between 1960 and 1980. New York City (six teams) won in each of the four major sports between 1973 and 1994. The Los Angeles Kings have never won a title but thanks to the Anaheim Ducks, the Los Angeles area has seen championships in all sports between 1984 and 2007. Chicago (five teams) won in the four majors between 1986 and 2010. Detroit's shortest four-sport run was 44 years (Red Wings in 1955 to Pistons in 1989). None of the other four sport cities (Dallas, Denver, Miami, Phoenix, Minneapolis and Washington) have won in all sports. Atlanta was a four sport city until this month.

The Bruins won Boston's 34th pro title in the four major sports. The breakdown is as follows: Celtics (17), Red Sox (7), Bruins (6), Patriots (3) and Boston Braves (1). Amazingly enough, the Patriots now own the longest drought among the local teams. It must also be noted that Boston is a freak helmet catch and a Kendrick Perkins knee injury away from having nine titles in ten years. Does this make Boston the best sports city in America? Right now, the answer is an obvious Yes. But does that hold up over a longer period of time? I looked to the data to find out.

To rank the pro sports cities, I simply counted the number of championships won since 1970 and divided by the number of completed seasons for all of that city's pro teams. For example, Boston has won 14 championships since January 1970 while playing 165 total seasons (40 for the Sox, 42 for the Pats, 42 for the Celtics and 41 for the Bruins). I divide 14 by 165 to get Boston's championship percentage of 8.5%. In other words, the Boston teams won the championship in 8.5% of the seasons in which they have participated. The average number of teams in the four major pro sports during that time is about 26 which makes the average championship rate about 3.8%. I chose 1970 as a starting point because the late 60s and early 70s began the rapid expansion era in the major sports. It's difficult to compare championships of today to championships of earlier decades because there were a lot fewer teams competing for the title. In 1950 there were 16 major league baseball teams, 13 NFL teams, 17 NBA teams and 6 NHL teams. By 1970, major baseball and the NFL had 24 and 26 teams, respectively. The NBA was at 22 teams by 1976-77 and the NHL expanded to 18 teams in 1975-76. Today, each league has 30-32 teams.

I had to make some judgement calls about which teams were part of each city. Obviously, the Patriots are a Boston team even though they are called the New England Patriots and play in the suburbs. For New York City, I did not include the Islanders, Devils or Nets but I did include the Jets and Giants. I combined the teams that play in Anaheim with the LA teams. I didn't combine Oakland, San Francisco and San Jose though it might have been reasonable to group the Bay Area teams. Green Bay and the Milwaukee teams were not combined. Most Milwaukee people root for the Packers, but Green Bay's fan base includes many in the Upper Peninsula of Michigan where fans might root for the Tigers and Red Wings.

The analysis below is limited to sports cities who have played in at least 90 seasons since 1970. This means that two sport cities like Baltimore, Cincinnati, Indianapolis, Milwaukee and San Francisco are not included. Buffalo, Kansas City and San Diego made the cut because they had NBA teams in the 70s/80s (KC also had NHL hockey for two years). I pulled this data from a few different sources so feel free to report any errors. I don't want to short change anyone.

Boston is the best sports city of the past decade and New York has the most championships in history but, numerically-speaking, Pittsburgh is the best sports city of the past four decades. The Steelers have won more Superbows than any other NFL team, the Penguins have been highly successful over the past twenty years, winning three Cups, and the Pirates won the World Series in the early and late portions of the 1970s. Cleveland is no doubt the worst sports city of the past forty years. Since the Cleveland Browns won the 1964 NFL championship, Cleveland teams have completed 135 seasons without a title (and suffered through LeBron's "Decision"). Here are the numbers:

New York has won more championships than any other city. Eight different teams (Yankees, Mets, NY Baseball Giants, Brooklyn Dodgers, NY Football Giants, Jets, Rangers and Knicks) have combined for 49 championships over the years. Boston is second with 34 titles, including one World Series victory from the Boston Braves.

• New York City includes the Brooklyn Dodgers and NY Baseball Giants but doesn't include the Islanders, Devils or Nets
• Boston includes the Boston Braves who won one title
• Chicago includes three titles won by the NFL's Staleys and Cardinals
• Los Angeles/Anaheim includes one NFL title each by the LA Raiders and LA Rams
• Philadelphia includes titles won by MLB's Athletics (5) and the NBA's Warriors (2)
• Green Bay is counted alone (not combined with Milwaukee)
• St. Louis includes a title by the NBA's Hawks
• Cleveland includes one title each by the NFL's Bulldogs and Rams
• Dallas includes an AFL title by the Texans
• The Canadian teams are not included