There is a discussion at The Book Blog which began with a link Tango made to a post by John Dewan regarding the declining length of David Ortiz's air balls and has evolved into a discussion of batted ball speeds as measured by HITf/x. It's worth your time if you're interested in the new HITf/x data. I posted a couple graphs in post #18 regarding how batting average is affected by the speed of the batted ball and the vertical launch angle.
Mike Fast is a Royals fan who enjoys investigating baseball questions using data of many sorts. He is a member of Complete Game Consulting. He welcomes comments via e-mail.
