Wearing the uniforms from the 1918 World Series, the Cubs score 8 runs in the 8th inning, taking advantage of three Boston errors, to win, 9 – 3, at Fenway Park. Two of the runs score on a botched rundown of Alfonso Soriano, which acounts for two of the miscues. Losing P Matt Albers gives up 6 runs without retiring a batter. The game is marred by an injury to Cubs CF Marlon Byrd, who suffers multiple fractures when beaned by Alfredo Aceves.

On May 21, 2011 — Wearing the uniforms from the 1918 World Series, the Cubs score 8 runs in the 8th inning, taking advantage of three Boston errors, to win, 9 – 3, at Fenway Park. Two of the runs score on a botched rundown of Alfonso Soriano, which acounts for two of the miscues. Losing P Matt Albers gives up 6 runs without retiring a batter. The game is marred by an injury to Cubs CF Marlon Byrd, who suffers multiple fractures when beaned by Alfredo Aceves.

Source:
Baseball Reference May 21