Using Gross Production Average to Analyze Prospects

Gross Production Average is a more accurate measure of a hitter's performance. While OPS gives equal weight to OBP and SLG, GPA weighs OBP more. The statistic also reads like a batting average, with .270 being average and over .300 is considered good.

GPA

Mark Wagner .328

Aaron Bates .319

Tim Federowicz .302

Josh Reddick .294

Jonathan Van Every .286

Anthony Rizzo .280

Ryan Lavarnway .280

One of the things that struck me was that Van Every has one of the highest Gross Production Averages despite dismal .215 batting average, but 57% of his hits this season have gone for extra bases which is contributing factor to the high GPA. These players with the highest GPAs also have 6 of the 7 highest highest isolated power averages in the farm system.

ISO

Reddick .287

Lavarnway .232

Federowicz .206

Wagner .198

Rizzo .189

Bates .182