If my calculations are correct...
The Yakult Swallows lost to the Hiroshima Carp tonight and are now just a loss or a Hanshin Tigers' win away from being eliminated from post-season play.
The Tigers also lost tonight, dropping their game against the Yokohama Bay Stars. If the Tigers lose one more, or if the Dragons win their final game of the season on 10/2, they will no longer have a shot at winning the league title (since a tie will go to the Dragons since they won the season series, 13-9-2).
Forgot to include that the Swallows' loss also guaranteed the Giants a post-season berth.