Secondary Average
From Wiki
Secondary Average is a Bill James statistic, first introduced in the 1986 Baseball Abstract, that measures a player's offensive contributions in aspects not measured by Batting Average. It is calculated simply as the sum of extra bases, walks, and net steals per at bat, or:
(TB - H + W + SB - CS)/AB
James noted that league Secondary Averages tended to be similar to league Batting Averages, but that the range of individual performances was much wider.
