Sports Reference, LLC is a company which operates several sports-related websites including , Baseball-Reference.com , Pro-Football-Reference.com Basketball Reference, and Hockey Reference.
The site also includes sections on
college football, college basketball and the Olympics. The sites attempt a comprehensive approach to sports data. For example, Baseball-Reference.com contains more than 100,000 box scores and  Pro-Football-Reference.com contains data on every scoring play in the National Football League since 1941.
The company, which is based in the
Mt. Airy neighborhood of Philadelphia, Pennsylvania, was founded as Sports Reference in 2004 and was incorporated as Sports Reference LLC in 2007.  
Sports Reference Olympics logo
Sports Reference added a site for
Olympic Games statistics and history in July 2008. 
The company announced in December 2016 that the Olympics site will be shut down in the near future due to a change in its data licensing agreement.
Since that time, data for the  2016 Summer Olympics was added, but the site has not been updated for the  2018 Winter Olympics. The providers of the Olympic data are working with another publisher to create a new website. 
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"About SR/Olympics". Sports-Reference.com. Archived from the original on 2008-07-29 . Retrieved . July 20, 2018
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"We'll Be Closing Soon". Sports-Reference.com. Archived from the original on 2016-12-19 . Retrieved . November 13, 2017
"2016 Rio de Janeiro Summer Games". Sports-Reference.com . Retrieved . 2018-07-20
"Winter Games Index". Sports-Reference.com . Retrieved . 2018-07-20