Haller hit .261, with 18 home runs, and 55 Run batted in (RBI), for the Giants in 1962, in a platoon system, alongside Ed Bailey. Haller and Bailey combined to give the Giants 35 home runs and 100 runs batted in from the catcher's position as they battled the Los Angeles Dodgers in a tight pennant race. The two teams ended the season tied for first place and met in the 1962 National League tie-breaker series. The Giants won the three-game series to clinch the National League championship. The Giants then lost to the New York Yankees in the 1962 World Series in seven games. Haller collected four hits in 14 at-bats, with a home run, and three RBI, during the Series.