Aaron Gleeman
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Aaron Gleeman (born Template:Birth based on age as of date) 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.Template: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]
Contributions to sabermetrics
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]