1873 MLB Imperialism Map

Brooklyn Atlantics12–1Philadelphia White Stockings+9 territories

Territory Changes

Team Territory Control

This table shows all teams sorted by the number of territories they control.

Final standings: the Brooklyn Atlantics finished on top with 9 of 9 territories (100.0%).

Team Territories Controlled
Brooklyn Atlantics 9 (100.0%)

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How MLB Territory Conquest Works

  • Every team starts with the land closest to its ballpark.
  • Win a game and you take all of the loser's territory.
  • Territory carries over all season, with no resets until next year.
  • Click any territory to trace every team that held it.

Full Rules and FAQ

Shared Venues Note

Some teams in this season share a venue location. For visualization purposes, each team's territory boundary is calculated from a slightly offset position (~300 feet apart) to create distinct territories.

  • Union Grounds:
    • Brooklyn Atlantics (nudged NE)
    • New York Mutuals (nudged SW)
  • Jefferson Street Grounds:
    • Philadelphia Athletics (nudged NE)
    • Philadelphia White Stockings (nudged SW)

Data sources: Game data from Sports Reference; venue data from VenueStats .

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Season Records

The standout territory feats of the season.

Biggest Land Grab
+9
Philadelphia White Stockings
in a single day (1873-07-10)
Longest Reign
18
Philadelphia White Stockings
straight days as leader
Most Conquered
43
Boston Red Stockings
territories taken all season
Biggest Collapse
−9
Philadelphia White Stockings
lost in one day (1873-06-17)

Team Directory

Each team's season at a glance — days spent leading the map, largest empire, territory conquered, and the rise-and-fall sparkline. Sorted by who dominated.

Philadelphia White Stockings

Jefferson Street Grounds

61 days led peak 9 +42 taken

Boston Red Stockings

Walpole Street Grounds

47 days led peak 9 +43 taken

Baltimore Canaries

Newington Park

11 days led peak 7 +13 taken

New York Mutuals

Union Grounds

7 days led peak 9 +16 taken

Philadelphia Athletics

Jefferson Street Grounds

4 days led peak 9 +12 taken

Washington Blue Legs

Olympics Grounds

2 days led peak 2 +1 taken

Brooklyn Atlantics

Union Grounds

1 day led peak 9 +12 taken

Baltimore Marylands

Madison Avenue Grounds

0 days led peak 1 +0 taken

Elizabeth Resolutes

Waverly Fairgrounds

0 days led peak 1 +0 taken

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