He helped the Robins win the 1916 and 1920 National League pennants. In the 1916 World Series, he recorded a save in Game 3 and was the hard-luck losing pitcher of the series-ending Game 5.
On March 25, 1920 in the top of the first inning during an exhibition game against the New York Yankees Pfeffer threw a pitch that struck Yankees second basemanChick Fewster in the temple, knocking him unconscious for approximately ten minutes. Fewster suffered a fractured skull and concussion, and temporarily lost his ability to speak.[1]
Pfeffer led the National League in hit batsmen in 1916 (17) and 1917 (16). In 1916 he gave up Rogers Hornsby's first home run.[2] In 13 seasons he had a 158–112 win–loss record with 10 saves in 347 games.
As of the end of the 2014 season, Pfeffer ranked 96th on the MLB career ERA list (2.77)[3] and tied for 73rd on the MLB career hit batsmen list (105).[4] He is the Dodgers' career leader in ERA (2.31).[5]
