Iorg is perhaps best known for his game-winning hit in game 6 of the 1985 World Series as a member of the Kansas City Royals against his old team, St. Louis. The hit came during one of only two at-bats that Iorg received during the series. The Cardinals had led the series three games to two prior to game six; the game is remembered for first-base umpire Don Denkinger's controversial "safe" call of Royals hitter Jorge Orta on a ground ball to lead off the bottom of the ninth. Iorg batted later in the inning with one out and the bases loaded. The Royals trailed, 1–0, until Iorg's single allowed Onix Concepción and Jim Sundberg to score. The Royals went on to win game 7, 11–0, and give Kansas City their first World Series championship.