The Whammer is the “leading hitter of the American League,” whom Hobbs encounters on the train to Chicago at the beginning of the novel. Characteristically arrogant and foolhardy, the Whammer challenges Hobbs to a pitching and hitting competition and loses spectacularly in an episode reminiscent of the scene that ends the novel, in which Hobbs loses the final game of the season to a younger pitching prodigy, Herman Youngberry.