Aaron Gleeman
Aaron Gleeman is a writer primarily covering the Minnesota Twins for The Athletic and is the former Editor-in-Chief at Baseball Prospectus. He co-hosts Gleeman and the Geek, a Twins Baseball podcast. He was the co-founder and main operator of the baseball statistics website, The Hardball Times before leaving to write for NBC Sports. In 2006, Gleeman was featured in a short profile in Sports Illustrated. He is the author of the book, “The Big 50: Minnesota Twins: The Men and Moments that Made the Minnesota Twins.”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, despite annual attempts and Gleeman eventually dropped out of the University without obtaining his degree.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.
