The Mississippi River is accepted as one of the dividing lines of the United States.

Resolves YES for any of the following teams winning the World Series in 2025:

Atlanta Braves

Baltimore Orioles

Boston Red Sox

Chicago Cubs

Chicago White Sox

Cincinnati Reds

Cleveland Guardians

Detroit Tigers

Miami Marlins

Milwaukee Brewers

New York Mets

New York Yankees

Philadelphia Phillies

Pittsburgh Pirates

Tampa Bay Rays

Toronto Blue Jays

Washington Nationals

The Cardinals and Twins were tricky to place because St. Louis and Minneapolis are both on the river. However, both home parks are situated west of the river, so they are considered part of the western side of the league for this market.