The regular schedule of 154 was shortened due to World War I, with teams playing between 123 and 131 games.
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot
The 1918 Philadelphia Phillies, managed by Pat Moran, missed the postseason after finishing the MLB regular season in 6th place in the NL with a 55-68 record.