1903 MLB Imperialism Map

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Territory Changes

Team Territory Control

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

Final standings: the Cincinnati Reds finished on top with 8 of 16 territories (50.0%).

Team Territories Controlled
Cincinnati Reds 8 (50.0%)
Cleveland Napoleons 8 (50.0%)

Play with the MLB Map

Simulate your own territory battles: spin the wheel, input results, and see what happens.

Editable MLB Map Random MLB Team Generator
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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 How to make your own map

Data sources: Sports Reference (game data); VenueStats (venue data).

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Season Records

The standout territory feats of the season.

Biggest Land Grab
+8
St. Louis Browns
in a single day (1903-07-30)
Longest Reign
8
Chicago White Sox
straight days as leader
Most Conquered
103
Chicago White Sox
territories taken all season
Biggest Collapse
−8
St. Louis Browns
lost in one day (1903-08-01)

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.

Cleveland Napoleons

League Park

22 days led peak 8 +90 taken

Chicago White Sox

South Side Park III

21 days led peak 8 +103 taken

Boston Americans

Huntington Avenue Grounds

16 days led peak 8 +100 taken

Detroit Tigers

Bennett Park

16 days led peak 8 +69 taken

St. Louis Browns

Busch Stadium

12 days led peak 8 +90 taken

Philadelphia Athletics

Columbia Park

8 days led peak 8 +43 taken

New York Highlanders

Hilltop Park

3 days led peak 8 +28 taken

St. Louis Cardinals

Cardinal Field

2 days led peak 4 +57 taken

Cincinnati Reds

Palace of the Fans

0 days led peak 8 +80 taken

Chicago Cubs

West Side Park II

0 days led peak 8 +62 taken

Brooklyn Superbas

Washington Park

0 days led peak 8 +77 taken

Philadelphia Phillies

Baker Bowl

0 days led peak 8 +42 taken

Boston Beaneaters

Walpole Street Grounds

0 days led peak 4 +29 taken

Washington Senators

American League Park

0 days led peak 4 +23 taken

Pittsburgh Pirates

Exposition Park III

0 days led peak 4 +57 taken

New York Giants

Polo Grounds

0 days led peak 4 +58 taken

Explore MLB Through the Years

All 156 MLB seasons, 1871 to 2026. Replay any of them game by game, or make your own version.

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MLB seasons of the 1870s

More Sports Imperialism Maps

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