NFL Empires: 1931

This is a continuation of my "empire" maps (where victors take the territory of the losers) of the NFL. Different than most such imperialism sports maps, instead of gaining all the loser's land from a victory home or away, the victor only gets territory for an away victory, and just two-thirds of it (or one-third for an away tie).

This is the twelfth season of the NFL, starting where the previous season ended, removing Newark and Minneapolis (distributing their land to neighbors based on distance to "capitals"), and adding Cleveland (gaining a 100-mile radius, except only halfway to a "capital" city of the land the new team is taking).

My data was from Pro Football Reference and most of the logos from Sports Ecyclopedia and SportsLogos.net.

Here then is the map of the NFL empires after the 1931 season:

Green Bay (green) won the season again. They held onto their territory, but only gained relatively little new territory. Second-place Portsmouth (purple) gained territory, but there was little non-green land to go around.

Here is the map before the season started:

Green Bay, Green Bay, Green Bay.