Commentary

Playing with the numbers: SECA splits

Updated: August 30, 2007, 12:28 AM ET

By David Srinivasan | Special to ESPN.com

Years ago, when I was a teenager, and the Internet was a mere twinkle in Al Gore's eye, Bill James came up with the concept of secondary average ( click here to head to ESPN's secondary-average stats page).

What is secondary average? It's a measure of what a player does, other than hit for average, to put runs on the scoreboard. The formula ESPN uses is:

(Total bases hits + walks + steals caught stealing) / at-bats

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