The magic number is the combined number of wins by the first place team and losses by the trailing team that will eliminate the trailing team from winning the division.
Here is how the magic numbers for division titles look on the morning of Saturday, Sept. 6:
AL East
First place team: Orioles
Magic number to eliminate:
2. Yankees (14)
3. Blue Jays (13)
4. Rays (7)
5. Red Sox (2)
AL Central
First place team: Royals
Magic number to eliminate:
2. Tigers (21)
3. Indians (18)
4. White Sox (8)
5. Twins (5)
AL West
First place team: Angels
Magic number to eliminate:
2. A's (17)
3. Mariners (15)
4. Astros (Eliminated)
5. Rangers (Eliminated)
NL East
First place team: Nationals
Magic number to eliminate:
2. Braves (16)
3. Marlins (13)
4. Mets (10)
5. Phillies (9)
NL Central
First place team: Cardinals
Magic number to eliminate:
2. Brewers (19)
3. Pirates (18)
4. Reds (11)
5. Cubs (10)
NL West
First place team: Dodgers
Magic number to eliminate:
2. Giants (20)
3. Padres (10)
4. Diamondbacks (2)
5. Rockies (Eliminated)