The histogram represents the distribution the top 250 career rushing yard totals in NFL history. It includes active players and is not normalized for the number for years played. I don’t have much to say about this, except that it appears that one must rush for more than 12,000 yards in a career to be truly exceptional. Calculating the yards per year (ypy) indicates that Jim Brown (1368ypy), Walter Payton (1287ypy), and Barry Sanders (1527ypy) are the three greatest running backs in NFL history. It also suggests that Curtis Martin (1282ypy) should be in the Hall of Fame.
