Note: I’ve added a 4th graph at the end of the post, covering only the years 1982-2011.
A couple of graphs relating bWAR/age, and OPS+/age. I’ll leave the observations to you folks.
(1) As a general followup to the graphs in my Ryan Zimmerman post, here’s a graph showing the number of seasons of four different WAR levels, for all position players, for the years 1901-2011:






