Oakland Athletics at Boston Red Sox

A's and Red Sox wore 1936 uniforms to continue the 100th year of Fenway Park celebrations and honor the years the teams traded Jimmie Foxx.

New York Yankees at Boston Red Sox

On the 100th Anniversary of the opening of Fenway Park, the Red Sox and the Yankees (nee Highlanders) dressed in 1912 uniforms, complete with N#OB.

Chicago Cubs at Boston Red Sox

In their first matchup at Fenway Park since 1918, the Cubs and Red Sox wore uniforms from that year in their interleague matchup.

Boston Red Sox at San Diego Padres

Boston Red Sox at Pittsburgh Pirates

The Pittsburgh Pirates and the visiting Boston Red Sox celebrated the 100th anniversary of their meeting in the first World Series with a throwback event in which both teams wore uniforms from 1903.

The following images are from the Beaver County Times:

Boston Red Sox at Toronto Blue Jays

The visting Red Sox dressed as the 1948 Boston Royal Giants, and the Blue Jays dressed as the Chatham All-Stars.

Atlanta Braves at Boston Red Sox