井口資仁
Among the 34 batters in this list, Orlando Isales has the highest batting average, at .400; he collected two hits in five at-bats during the Phillies' 1980 championship season. Other players with an average over .300 include Tadahito Iguchi (.303 in one season); and Jay Johnstone (.303 in five seasons), who has the highest mark among the players whose surnames begin with J. Jones leads all players on this list with 180 home runs and 753 runs batted in (RBI). Raúl Ibañez leads the I-named players with 70 home runs and 260 RBI.