Why are the statistical categories different on certain of the player pages?
As of September 5, 2008, all newly-created player pages for pitchers have added two new statistical categories and dropped two others. WHIP and K/9 were added, and complete games and shutouts were removed. Also, all pitcher pages created after September 5, 2008, will maintain the IP stat in mathematical format (5.3 IP rather than 5.1 IP to show 5 1/3 IP; 5.7 IP rather than 5.2 IP to show 5 2/3 IP). Pitcher pages existing before September 5, 2008 will NOT be changed to the new format. Statistical categories for position players remain unchanged for all time periods.