You know the number. You’ve been bragging about the number to that old college roommate of yours in Cleveland, and also to your brother who long ago decided that moving to Topeka was a great idea.

The number is 10. That’s how many championship parades we’ve had in our fair city in the past 15 years.

This is our century. No one can argue that. But it’s not as if the last one was a disaster, either. We began winning championships in 1903 when Pittsburgh Pirates owner Barney Dreyfuss had the gumption to challenge the Boston Americans (the “Red Sox’ name was in the future) to a best-of-nine series for what this newspaper called “supremacy in the baseball world,’’ and our lads prevailed in eight games. In addition to a check for $1,182, each member of the championship squad became the recipient of a gold medal provided by, ahem, The Boston Globe. (Talk about the past being prologue: The same man who now owns the Red Sox also owns the Globe.) According to the Globe, the medals “are designed to be worn as watch charms, and it is to be hoped they may be handed down as valuable heirlooms and as trophies of a famous victory.’’ Well, of course.

Nowadays, our champions settle for a nice adoring parade and a big chunk of cash, with which, presumably, they can purchase their own medals or watch charms.

That 1903 World Series championship was the first of 37 championships won by five different clubs. I can see the lips moving out there. I can see the scratching of heads. Five? Red Sox, Bruins, Celtics, Patriots . . .

Hey! Don’t forget the Miracle Braves.

Yes, there was such a thing as the Boston Braves, who were charter members of the National League in 1876 and who were all ours until 1952, first moving to Milwaukee and then, in 1966 to Atlanta. Their one and only championship came in 1914, when they made history by becoming the only major league team to win the pennant after being in last place on July 4, and who then stunned the baseball world — in those days the only team sports world of consequence — by sweeping Connie Mack’s mighty Philadelphia Athletics.

Only one city has more titles, and anyone with an IQ over 50 can figure out which city that might be. But in order to amass its leading total of 61 championships, New York has had the benefit of having 11 teams, and I am including the three titles won by the New Jersey Devils.

Things you should know: Only seven metropolitan areas have won championships in all four major team sports. I include titles won in the now defunct American Basketball Association (ABA), by the way. Here’s how the cities who’ve claimed baseball, football, basketball, and hockey titles stack up.

1. New York

Titles: 61. Yankees 27, Football Giants 8, Baseball Giants 7, Rangers 4, Islanders 4, Devils 3, Knicks 2,Mets 2, Nets 2, Jets 1, Dodgers 1

Most recent: 2011 Football Giants

I do see Governor Chris Christie waving his hand and reminding us all that the Giants and Jets in fact play in New Jersey, as do the Devils, whose 1995, 2000, and 2003 parades were in the parking lot. Hard to believe the Dodgers only won it all once (1955). Never forget those great Islanders teams.

2. Boston

Titles: 37. Celtics 17, Red Sox 8, Bruins 6, Patriots 5, Braves 1

Most recent: 2016 Patriots

Any display of championship impatience on the part of a New Englander would be very unseemly. Since the Boston Americans’ 1903 title, the longest championship drought we’ve had is 16 years (1940-41 Bruins to 1956-57 Celtics). In this blissful century we lead in titles with 10 and we are the only city to have a title in all four primary team sports, a circumstance that could last well into the 21st century. We had one astounding burst of winning titles in all four sports during one seven-year span (2004 Sox to 2010-11 Bruins).

3. Chicago

Titles: 29. Bears 9, Blackhawks 6, Bulls 6, Cubs 3, White Sox 3, Cardinals 2

Most recent: 2016 Cubs

Yes, Cardinals? What? You think the Arizona Cardinals were hatched in Phoenix? They were the Chicago Cardinals from 1920-59 and the St. Louis Cardinals from 1960-87. They won it all in 1925 and 1947. Six baseball crowns isn’t a lot of production for teams with a combined run that began in 1901, when the White Sox were formed.

4. Detroit

Titles: 22. Red Wings 11, Tigers 4, Lions 4, Pistons 3

Most recent: 2007-08 Red Wings

The Golden Era was from 1950-57. The Red Wings, led by the immortal Gordie Howe, won the Stanley Cup in ’50, ’52, ’54, and ’55. The Lions, with Bobby Layne at quarterback, won it all in ’52, ’53, and ’57. Yes, Lions fans are getting a bit restless.

5. Los Angeles

Titles: 22. Lakers 11, Dodgers 5, Kings 2, Rams 1, Raiders 1, Angels 1, Ducks 1

Most recent:2013-14 Kings

Or should I say “Southern California,’’ since I am counting Anaheim, a reasonable drive south? LA got a late start, not acquiring a slot until the Rams relocated from Cleveland in 1946. Baseball came in ’58, basketball in ’60, and hockey in ’67.

6. Pittsburgh

Titles: 16. Steelers 6, Pirates 5, Penguins 4, Pipers 1

Most recent: 2015-16 Penguins

I said I was including the ABA, and by golly Connie Hawkins and the Pittsburgh Pipers won the inaugural ABA crown in 1967-68.

6. Philadelphia

Titles: 16. Athletics 5, Eagles 3, Phillies 2, 76ers 2,Warriors 2, Flyers 2

Most recent: 2008 Phillies

This is actually kinda sad. There’s really not much to show for well over a century of baseball games.

Special mention: Bay Area

Titles: 17. 49ers 5, Athletics 4, Giants­ 3, Raiders 2, Warriors 2, Oaks 1

Most recent: 2014-15 Warriors

That’s Rick Barry’s ABA Oakland Oaks.

Special Canadian mention: Montreal

Titles: 26. Canadiens 24, Maroons 2

P.S. Keep those ducks boats in good repair. No reason to think we’re done.

P.P.S. Poor Atlanta’s only title belongs to the 1995 Braves. But since they’re the old Boston Braves, we can claim a piece of that one, too.

Bob Ryan’s column appears regularly in the Globe. He can be reached at ryan@globe.com.