Average age of each major league roster including active and disabled players in years-days. Note many of the oldest teams are also some of the winningest teams. Could there be a correlation?
New York Yankees: 34-291
San Francisco: 32-292
Boston: 32-160
Houston: 31-135
St. Louis: 31-111
San Diego: 31-070
Philadelphia: 31-027
New York Mets: 30-327
Florida: 30-325
Baltimore: 30-260
Atlanta: 30-195
Seattle: 30-111
Texas: 30-085
Chicago Cubs: 30-036
Chicago White Sox: 29-348
Los Angeles Angels: 29-305
Los Angeles Dodgers: 29-288
Detroit: 29-133
Cleveland: 29-103
Toronto: 29-058
Milwaukee: 29-031
Cincinnati: 28-357
Pittsburgh: 28-284
Washington: 28-259
Oakland: 28-191
Kansas City: 28-181
Arizona: 28-176
Tampa Bay: 28-121
Minnesota: 28-098
Colorado: 26-316
MLB Average: 29-325
New York Yankees: 34-291
San Francisco: 32-292
Boston: 32-160
Houston: 31-135
St. Louis: 31-111
San Diego: 31-070
Philadelphia: 31-027
New York Mets: 30-327
Florida: 30-325
Baltimore: 30-260
Atlanta: 30-195
Seattle: 30-111
Texas: 30-085
Chicago Cubs: 30-036
Chicago White Sox: 29-348
Los Angeles Angels: 29-305
Los Angeles Dodgers: 29-288
Detroit: 29-133
Cleveland: 29-103
Toronto: 29-058
Milwaukee: 29-031
Cincinnati: 28-357
Pittsburgh: 28-284
Washington: 28-259
Oakland: 28-191
Kansas City: 28-181
Arizona: 28-176
Tampa Bay: 28-121
Minnesota: 28-098
Colorado: 26-316
MLB Average: 29-325