See each link for data availability by season for a given sport.

 

Please note that collecting sports data is an "inexact science."  It is common for these files to be corrected and/or updated when new information is found.  Please do email me with any issues.

 

Lately, I've been collecting some data on European football and the WNBA as well.  These data appear after the "Big 4" North American Leagues.

 

Major League Baseball   Attendance Fan Cost Index Income and Expenses Payroll Player Salaries Manager Salaries Rival Leagues Team Moves Team Values and Sale Prices Ticket Prices TV Revenue Winning Percents	National Basketball Association Attendance Fan Cost Index Income and Expenses Payroll Player Salaries Head Coaches Salaries Rival Leagues Team Moves Team Values and Sale Prices Ticket Prices TV Revenue Winning Percents
National Football League Attendance Fan Cost Index Income and Expenses Payroll Player Salaries Head Coaches Salaries Rival Leagues Team Moves Team Values and Sale Prices Ticket Price TV Revenue Winning Percents	National Hockey League Attendance Fan Cost Index Income and Expenses Payroll Player Salaries Head Coaches Salaries Rival Leagues Team Moves Team Values and Sale Prices Ticket Price TV Revenue Final Standings Points

European Leagues

Income and Expenses  (and other finances; English Football Association, 1907-1999; Various European teams 2002-03 through 2004-05)

Payrolls  (English Football Association, 1907-1999)

Salaries  (English Football Association, top earners 2003)

Team Values  (Various European teams 2004-2006)

Final Standings  (English Football Association, x to x)