On June 28, 1963 At Los Angeles, the Braves’ Warren Spahn beats Don Drysdale, three-hitting the Dodgers, 1 – 0. It is the first time Spahn has beaten the Dodgers on their home grounds since August 21, 1948 (15 years). He had lost 14 straight: nine at Ebbets Field; four at Memorial Coliseum and one at Chavez Ravine.

Source
Baseball Reference June 28