Aaron Gleeman
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Aaron Gleeman is the co-founder and operator of the baseball statistics website, The Hardball Times. He maintains a popular blog with over four million hits and is a contributing baseball writer for The Hardball Times, Fox Sports, USA Today, Rotoworld, and Insider Baseball. In 2006, Gleeman was featured in a short profile in Sports Illustrated. That same year, Gleeman began writing about more than just baseball for NBCSports.com.
[edit] Biography
Gleeman is a graduate of Highland Park High School in St. Paul, MN. After high school, he attended the University of Minnesota as a journalism major. However, the Minnesota Daily did not hire him as a staff writer (although they did give him one freelance story which ran on the Daily website) and Gleeman dropped out of the University.
[edit] Contributions to sabermetrics
On November 25, 2003, Gleeman used his blog to introduce a new statistic called Gleeman Production Average. The name was later changed to Gross Production Average to make it more palatable. The formula is
where OBP is on-base percentage and SLG is slugging percentage. The result is a number that resembles a batting average but reflects the player's ability to avoid outs and hit for power.
