Aaron Gleeman (born 1982 or 1983) is an American sports writer primarily covering the Minnesota Twins. He previously wrote for The Athletic and is the former editor-in-chief at Baseball Prospectus. [1] [2] He co-hosts Gleeman and the Geek, a sports podcast about the Twins. [3] He was a co-founder and writer for The Hardball Times beginning in 2004 before leaving to write for NBC Sports. [4] [5] In 2006, Gleeman was featured in a short profile in Sports Illustrated. [6] He is the author of “The Big 50: Minnesota Twins: The Men and Moments that Made the Minnesota Twins”, published in 2018. [7] He won the 2021 National Sports Media Association Minnesota Sportswriter of the Year Award. [2] [8] He left The Athletic in 2026, continuing to write about the Twins from his own website. [1] [9]
Gleeman is a graduate of Highland Park High School in St. Paul, Minnesota.[ citation needed ] He then attended the University of Minnesota as a journalism major. However, the Minnesota Daily did not hire him as a staff writer. Gleeman eventually dropped out of college without obtaining a degree. [6]
On November 25, 2003, Gleeman used his blog to introduce a new statistic called Gleeman Production Average. [10] 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. [11] [12] [13]