Why can NFL statistics differ between websites?

NFL statistics can differ because websites do not always display the same measure or set of games. One table may show regular-season totals while another includes playoffs, or one may display net passing yards while another shows gross passing yards.

Update timing also matters when the NFL issues a correction. Independently charted or calculated metrics can use different methods. Compare the column definitions, season filters, qualifying minimums, and last update before deciding that a number is wrong.