Aaron Gleeman
Encyclopedia
Aaron Gleeman is the Senior Baseball Editor at Rotoworld and owner of a popular blog, aarongleeman.com. He also currently writes for Rotoworld and NBC Sports. 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
Sports Illustrated
Sports Illustrated is an American sports media company owned by media conglomerate Time Warner. Its self titled magazine has over 3.5 million subscribers and is read by 23 million adults each week, including over 18 million men. It was the first magazine with circulation over one million to win the...

.

Biography

Gleeman is a graduate of Highland Park High School
Highland Park High School (Minnesota)
Highland Park Senior High School is a public secondary school in Saint Paul, Minnesota, United States serving grades 9 through 12. It is located in the Highland Park neighborhood....

 in St. Paul, MN. After high school, he attended the University of Minnesota
University of Minnesota
The University of Minnesota, Twin Cities is a public research university located in Minneapolis and St. Paul, Minnesota, United States. It is the oldest and largest part of the University of Minnesota system and has the fourth-largest main campus student body in the United States, with 52,557...

 as a journalism
Journalism
Journalism is the practice of investigation and reporting of events, issues and trends to a broad audience in a timely fashion. Though there are many variations of journalism, the ideal is to inform the intended audience. Along with covering organizations and institutions such as government and...

 major. However, the Minnesota Daily
Minnesota Daily
The Minnesota Daily is the campus newspaper of the University of Minnesota Twin Cities, published Monday-Thursday while school is in session, and published weekly on Wednesdays during summer sessions. Published since 1900, the paper is one of the largest student-run and student-written newspapers...

 did not hire him as a staff writer, despite annual attempts (although they did give him one freelance story which ran on the Daily website) 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
Gross Production Average
Gross Production Average or GPA is a baseball statistic created in 2003 by Aaron Gleeman, as a refinement of On-Base Plus Slugging . GPA attempts to solve two frequently cited problems with OPS. First, OPS gives equal weight to its two components, On Base Percentage and Slugging Percentage . In...

 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.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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