In 1925, Heilmann appeared in 150 games, 147 as Detroit's starting right fielder, and won his third batting title, this time in a close race with Tris Speaker. Going into the final day of the season, Heilmann trailed Speaker and needed a strong performance to pass him. On the last day, the Tigers played a doubleheader against the St. Louis Browns, and Heilmann had six hits, including a home run, in nine at bats. Heilmann finished with a .393 average, four points higher than Speaker. He was again among the American League leaders in most offensive categories, with 293 times on base (first), a 7.1 offensive wins above replacement rating (first), 134 RBIs (tied for first), 225 hits (third), a .457 on-base percentage (fourth), 326 total bases (fourth), a .569 slugging percentage (fifth), 40 doubles (fifth), and 64 extra base hits (fifth). Despite his accomplishments, the 1925 American League MVP award went to Roger Peckinpaugh, who hit almost 100 points below Heilmann and had 70 fewer RBIs than Heilmann but whose Senators repeated as pennant winners.