pitchers Note: G = Games played; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Other pitchers Note: G = Games played; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Relief pitchers Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts Awards and honors League leaders Vic Power, American League leader, fielding percentage, first basemen (.998) Farm system LEAGUE CHAMPIONS: Buffalo, Grand Island References External links 1957 Kansas City Athletics team page at Baseball Reference 1957 Kansas City Athletics team page at www.baseball-almanac.com Oakland Athletics seasons Kansas City Athletics season 1957 in sports in Missouri