The Brooklyn Tigers and the Boston Yanks merged for this one season. The combined team, known simply as The Yanks, played half of their home games in each city. After Brooklyn Tigers owner Dan Topping announced his intentions to join the new All-America Football Conference, his NFL team was immediately revoked after the season and all of its players were assigned to the Boston Yanks.
In the Eastern Division, the Yanks were still unbeaten (2–0–1) as of Week Four; at their only Yankee Stadium game (October 14), they had a 13–10 lead until the Giants tied them 13–13. In Week Five, the Yanks' 38–14 loss to Green Bay, put them at 2–1–1, tied with 2–1–0 Washington, while in the Western race, the Rams reached 4–0–0 after a 41–21 win over the Bears. In Week Six, halfway through the ten-game season, Boston and Washington both won, putting them even at 3–1–1 and 3–1–0. The Rams' 28–14 loss to the Eagles, along with wins by the Lions and Packers, tied all teams at 4–1–0 in the west. In Week Seven, the a blocked extra point attempt gave Detroit a 10–9 win at Boston, keeping the Lions tied with the Rams (5–1–0) for the Western lead, while taking the 3–2–1 Yanks to a game behind the 4–1–0 Redskins. In Week Nine, the Rams took the lead in the Western after a 35–21 win over the Cards, while the Lions lost 35–14 to the Giants.
In Week Ten, the 7–1 Rams and the 6–2 Lions met in Detroit's Thanksgiving Day game. For the Lions it was a must-win game, but they lost 28–21; at 8–1–0, the Rams clinched the division. Days later, the 5–2 Eagles hosted the 6–1 Redskins, and the Eagles' 16–0 win tied the teams at 6–2–0 in the Eastern race. The next week, however, the Eagles lost to the Giants 28–21, while the Redskins beat the Steelers 24–0. Washington's 17–0 win over the Giants the next week clinched its division.