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
RetroSeasons
RetroSeasons recaps past sports seasons through stories, photos, videos, and stats from every team, league, and stadium in history. Coverage includes the NBA, NFL, MLB and NHL, as well as vintage media from defunct teams and leagues.
Pittsburgh Pirates
1918 MLB Playoffs