MWF

Wikipedia wrote:When the regular season ends after the first Sunday in October (or the last Sunday in September), eight teams enter the post-season playoffs. Six teams are division champions; the remaining two "wild-card" spots are filled by the team in each league that has the best record but is not a division champion (best second-place team). Three rounds of series of games are played to determine the champion:

American League Division Series and National League Division Series, each a best-of-five game series;
American League Championship Series and National League Championship Series, each a best-of-seven game series played between the surviving teams from the ALDS and NLDS; and
World Series, a best-of-seven game series played between the champions of each league.
The division winners are seeded 1-3 based on record. The wild-card team is the 4 seed, regardless of its record. The matchup for the first round of the playoffs is usually 1 seed vs. 4 seed and 2 seed vs. 3 seed, unless the wild-card team is from the same division as the 1 seed, in which case the matchup is 1 seed vs. 3 seed and 2 seed vs. 4 seed, as teams from the same division cannot meet in the 1st round. In the first and second round of the playoffs, the better seeded team has home-field advantage, regardless of record.

In the event of a tie in the standings at the close of the regular season, league rules provide for a one-game playoff (with the home field determined by coin flip) to determine which of two teams participate in the Division Series. If three teams are involved in a tie, a two-game playoff may be played. If two teams are tied, but a tiebreaker would result in both participating in the Division Series anyway (due to one being division champion and the other being wild card), then no playoff is played and seedings are determined by head-to-head record.

The team belonging to the league that won the mid-season All-Star Game receives home-field advantage in the World Series.