09/24/2014 08:25 EDT | Updated 11/24/2014 05:59 EST

MLB playoff chase: The fall season

You don't need a calendar to understand baseball's fall season has arrived.

Summer came to a close on the weekend and now in the final week of the Major League Baseball's regular season, teams are dropping from contention faster that the leaves are tumbling.

On Tuesday night, the Toronto Blue Jays saw their "tragic number" come up when, despite a 10-2 win over Seattle, they were eliminated when the Kansas City Royals defeated the Cleveland Indians, 7-1. Entering play Wednesday, Toronto trailed the second wild card team by six games with five games remaining.

Three teams began Wednesday with a tragic number of one. One more loss by the New York Yankees, Cleveland and Milwaukee Brewers, or a win by the second wild card team, would eliminate them.

In an afternoon game at Yankee Stadium, New York fell to American League East champion Baltimore, 9-5, so another team down.

In the evening, the Indians were trying to stay alive against the Royals in Cleveland, while the Brewers were in Cincinnati against the Reds.

Four of the five playoff teams have been decided in the National League, with Milwaukee holding a mathematical chance to tying the San Francisco Giants for a wild card spot.

In the AL, the Anaheim Angels and Baltimore Orioles have locked up the West and East titles, respectively, and will host the best-of-five American League Divisional Series.

At the start of Wednesday, AL three teams had hopes of joining them along with Detroit, the AL Central leader, plus Kansas City and Oakland, the current wild card holders. But already that number has been reduced to two and the Seattle Mariners must end their four-game losing streak in Toronto or they, too, will be on the verge of falling from contention.