Silver: Rich data, poor data in sports analytics

From Nate Silver at FiveThirtyEight on February 23, 2015, with…

Brown: Who’s winning the MLB salary arbitration game? Here’s data from 1974 to 2005

From Maury Brown at Forbes.com on February 23, 2015:Salary arbitration…

Laurila: John Thorn and a historical perspective on baseball’s new changes

From SABR member David Laurila at FanGraphs on February 22, 2015,…

Appel: Sy Berger’s baseball cards

From SABR member Marty Appel at The National Pastime Museum on…

Edwards: A filmmaker’s quest to tell the unknown story of Hall of Famer Pete Hill

From Breanna Edwards at The Root on February 22, 2015:Pete Hill.…

McCurdy: A pictorial history of Presidential first pitches

From SABR member Bill McCurdy at The Pecan Park Eagle on February…

Krabbenhoft: Solving the mystery of Heinie Zimmerman’s 1912 National League Triple Crown

Editor's note: A version of this article was originally published…

This Week in SABR: February 20, 2015

Welcome to "This Week in SABR!" Here's what we've been up to…

Sullivan: Do more hitters or pitchers ‘surprise’ us?

From Jeff Sullivan at FoxSports.com on February 20, 2015:An interesting…

Posnanski: Things I learned from Strat-o-Matic

From SABR member Joe Posnanski at JoePosnanski.com on February…

Thorn: Who played for the Gotham Base Ball Club in New York?

From SABR member John Thorn at Our Game on February 20, 2015:This…

Cushing: Black World War II shipyard workers and baseball

From Lincoln Cushing at Kaiser Permanente on February 20, 2015:Some…

Whirty: Philadelphia’s Pythians made baseball history in 1800s

From SABR member Ryan Whirty at Philly.com on February 19, 2015:It's…

Call for papers: Fall 2015 Baseball Research Journal

The Spring 2015 issue of the Baseball Research Journal is in…

DiFranza: When the offseason meant job season for ballplayers

From SABR member Lenny DiFranza at BaseballHall.org on February…

Lester: The greatest pitching duel in black baseball history

From SABR member Larry Lester at The National Pastime Museum…

Bjarkman: U.S.-Cuba thaw is not so hot for MLB

From SABR member Peter C. Bjarkman at The Daily Beast on February…

The SABR Bookshelf: Winter 2015

Periodically throughout the year, SABR.org publishes listings…

Students: Submit entries for 2015 Jack Kavanagh Research Award

Students from grades 6-12 or undergraduates age 22 or under have…

Grow: Imagining an MLB concussion lawsuit

From SABR member Nathaniel Grow at FanGraphs on February 18,…

Watson: Testing the lasting effects of concussions in baseball

From SABR member Owen Watson at FanGraphs on February 18, 2015:Pitchers…

Footer: SABR member Justine Siegal lets girls know baseball is for all

From Alyson Footer at MLB.com on February 18, 2015, with mention…

Francis: Monte Irvin looks back at his career

From SABR member Bill Francis at BaseballHall.org on February…