The Orioles won the AL East in , with Bumbry batting .275 with 31 RBIs, 63 runs scored, 12 stolen bases, and 3 home runs. Defensively, he started 95 games in the outfield (all but one in center field) and had a .981 fielding percentage. Bumbry continued to bat leadoff when he started games, however manager Joe Altobelli substituted for him fairly often; of the 95 games Bumbry started, he only completed 44 of them. In the ALCS the Orioles defeated the Chicago White Sox in four games. Bumbry was the starting center fielder in the first and third games, and he pinch ran in the fourth game – overall he batted 1-for-8 (.125). In the 1983 World Series the Orioles defeated the Philadelphia Phillies in five games, for their first championship since 1970. Bumbry was the starting center fielder in each game except for the third game, which he did not play in. He batted 1-for-11 (.091) during the series, and was substituted for in each game.