Corrected entry: Throughout the film, anytime the baseball is shown in close-up (as when being pitched, etc), it appears to be a modern-day Rawlings American League baseball (with "Rawlings" either covered over or not visible). In 1961, where the film was set, the manufacturer of official baseballs for the majors was Spalding.
Corrected entry: When Roger Maris is on his final shot to get the 61st homerun in the same amount of games as Babe Ruth, he misses by hitting the ball with a check swing. When he hits it, the ball is traveling to his left, towards third base. In the next shot, the first baseman picks it up and tags out Roger!
Corrected entry: In many of the games, Yogi Berra was announced as a left fielder, when he was in fact a catcher.