What Counts as a Dynasty, and What Doesn't

No, Dodger fans: Back-to-back titles is not a dynasty. Back-to-back-to-back titles is a dynasty.

3 out of 6 is not a dynasty. 3 out of 5 is not a dynasty. 3 out of 4 is not a dynasty. 3 out of 3 is a dynasty.

Let's start from the 1st World Series, in 1903, onward:

Counts

1936-39 New York Yankees: 4 straight World Series

1949-53 New York Yankees: 5 straight World Series

1972-74 Oakland Athletics: 3 straight World Series

1998-2000 New York Yankees: 3 straight World Series

That's it. That's the list.

I could have extended that last one further: 1996-2003 New York Yankees: 8 years, 6 Pennants, 4 World Series.

Almost Counts

1903-04 Boston Red Sox: 2 straight, but that's it

1906-08 Chicago Cubs: 3 straight Pennants, 2 straight World Series

1907-09 Detroit Tigers: 3 straight Pennants, but no World Series

1910-14 Philadelphia Athletics: 5 years, 4 Pennants, 3 World Series

1911-13 New York Giants: 3 straight Pennants. but no World Series

1912-18 Boston Red Sox: 7 years, 4 Pennants, 4 World Series

1921-23 New York Yankees: 3 straight Pennants, 1 World Series

1921-24 New York Giants: 4 straight Pennants, 2 straight World Series

1926-28 New York Yankees: 3 straight Pennants, 2 straight World Series

1929-31 Philadelphia Athletics: 3 straight Pennants, 2 straight World Series

1941-43 New York Yankees: 3 Pennants, 2 World Series

1942-46 St. Louis Cardinals: 5 years, 4 Pennants, 2 World Series

1952-56 Brooklyn Dodgers: 5 years, 4 Pennants, 1 World Series

1955-64 New York Yankees: 10 years, 9 Pennants, 4 World Series

1963-66 Los Angeles Dodgers: 4 years, 3 Pennants, 2 World Series

1969-71 Baltimore Orioles: 3 straight Pennants, 1 World Series

1970-76 Cincinnati Reds: 7 years, 5 Divisions, 4 Pennants, 2 World Series

1976-81 New York Yankees: 6 years, 5 Divisions, 4 Pennants, 2 World Series 

1988-90 Oakland Athletics: 3 straight Pennants, 1 World Series

1991-93 Toronto Blue Jays: 3 Divisions, 2 Pennants, 2 World Series

2010-14 San Francisco Giants: 5 years, 2 Divisions, 3 Pennants, 3 World Series

2017-22 Houston Astros: 6 years, 5 Divisions, 4 Pennants, 2 World Series

2017-25 Los Angeles Dodgers: 9 years, 8 Divisions, 5 Pennants, 3 World Series

The 1926-28 Yanks, the 1929-31 A's, the 1955-57 (or 1956-58) and the 1960-62 Yanks came so close, losing a World Series in a Game 7. I suppose I could connect the 1941-43 Yanks to the 1936-39 Yanks, and say, 8 years, 7 Pennants, 6 World Series including 3 straight.

Doesn't Come Close to Counting

1929-38 Chicago Cubs: 10 years, 4 Pennants, no World Series

1930-34 St. Louis Cardinals: 5 years, 3 Pennants, 2 World Series

1933-37 New York Giants: 5 years, 3 Pennants, 1 World Series

1964-68 St. Louis Cardinals: 5 years, 3 Pennants, 2 World Series

1970-79 Pittsburgh Pirates: 10 years, 6 Divisions, 2 Pennants, 2 World Series

1974-81 Los Angeles Dodgers: 8 years, 4 Pennants, 1 World Series

1976-83 Philadelphia Phillies: 8 years, 6 Divisions, 2 Pennants, 1 World Series

1976-85 Kansas City Royals: 10 years, 6 Divisions, 2 Pennants, 1 World Series

1986-88 New York Mets: 3 years, 2 Divisions, 1 Pennant, 1 World Series

1991-99 Atlanta Braves: 9 years, 8 Divisions, 5 Pennants, 1 World Series

2004-07 Boston Red Sox: 4 years, 1 Division, 2 Pennants, 2 World Series

2004-13 St. Louis Cardinals: 10 years, 5 Divisions, 4 Pennants, 2 World Series

2007-11 Philadelphia Phillies: 5 years, 5 Divisions, 2 Pennants, 1 World Series

If you extend the Red Sox' full Ortiz Era? 2003-13 Boston Red Sox: 11 years, 2 Divisions, 3 Pennants, 3 World Series. That doesn't come close, either. Extend it even further? 2003-18 Boston Red Sox: 16 years, 5 Division titles, 4 Pennants, 4 World Series. No, not even close.

Same with the Braves' full Bobby Cox Era: 1991-2005 Atlanta Braves: 15 years, 14 Divisions, 5 Pennants, 1 World Series.