Although Erstad never hit .300 again after the 2000 season, he was a vital part of the 2002 World Series Champion Angels. After batting .421 in the American League Division Series against the New York Yankees and .364 in the American League Championship Series against the Minnesota Twins, Erstad batted .300 in the seven-game series vs. the National League Champion San Francisco Giants. He hit a key home run in Game 6 of the series with the Angels trailing, 5–3, in the eighth inning and facing elimination, and he also caught the final out of Game 7 hit by Kenny Lofton off Troy Percival into center field. When the Angels won the World Series in 2002, Erstad became just the second player hailing from North Dakota to be on a World Series winning roster. Roger Maris was the first with the 1961 Yankees and 1967 Cardinals.