Editing Major League Baseball (section)

===Postseason===
{{Main|Major League Baseball postseason}}
{{see also|World Series|List of World Series champions}}
{|class="wikitable" style="text-align:center; margin-left:1em; float:right"
|-
|+'''World Series records'''
|-
!scope="col"|Team
!scope="col"|Series<br />won
!scope="col"|Last<br />Series<br />won
!scope="col"|Series<br />played
|-
|scope="row"|[[New York Yankees]] (AL)
|27
|2009
|41
|- 
|scope="row"|[[St. Louis Cardinals]] (NL)
|11
|2011
|19
|-
|scope="row"|[[Athletics (baseball)|Athletics]] (AL)
|9
|1989
|14
|-
|scope="row"|[[Boston Red Sox]] (AL)
|9
|2018
|13
|- 
| scope="row" |[[Los Angeles Dodgers]] (NL)
|8
|2024
|22
|- 
|scope="row"|[[San Francisco Giants]] (NL)
|8
|2014
|20
|- 
|scope="row"|[[Cincinnati Reds]] (NL)
|5
|1990
|9
|- 
|scope="row"|[[Pittsburgh Pirates]] (NL)
|5
|1979
|7
|-
|scope="row"|[[Detroit Tigers]] (AL)
|4
|1984
|11
|-
|scope="row"|[[Atlanta Braves]] (NL)
|4
|2021
|10
|- 
|scope="row"|[[Chicago Cubs]] (NL)
|3
|2016
|11
|- 
|scope="row"|[[Baltimore Orioles]] (AL)
|3
|1983
|7
|- 
|scope="row"|[[Minnesota Twins]] (AL)
|3
|1991
|6
|- 
|scope="row"|[[Chicago White Sox]] (AL)
|3
|2005
|5
|-
|scope="row"|[[Philadelphia Phillies]] (NL)
|2
|2008
|8
|-
|scope="row"|[[Cleveland Guardians]] (AL)
|2
|1948
|6
|-
|scope="row"|[[Houston Astros]] <small>(NL to AL, 2013)</small>
|2 <sup>[AL]</sup>
|2022
|5<br />(4 <sup>[AL]</sup>, 1 <sup>[NL]</sup>)
|- 
|scope="row"|[[New York Mets]] (NL)
|2
|1986
|5
|-
|scope="row"|[[Kansas City Royals]] (AL)
|2
|2015
|4
|-
|scope="row"|[[Miami Marlins]] (NL)
|2
|2003
|2
|-
|scope="row"|[[Toronto Blue Jays]] (AL)
|2
|1993
|2
|-
|scope="row"|[[Texas Rangers (baseball)|Texas Rangers]] (AL)
|1
|2023
|3
|-
|scope="row"|[[Arizona Diamondbacks]] (NL)
|1
|2001
|2
|- 
|scope="row"|[[Washington Nationals]] (NL)
|1
|2019
|1
|- 
|scope="row"|[[Los Angeles Angels]] (AL)
|1
|2002
|1
|-
|scope="row"|[[Tampa Bay Rays]] (AL)
|0
|&nbsp;
|2
|- 
|scope="row"|[[San Diego Padres]] (NL)
|0
|&nbsp;
|2
|-
|scope="row"|[[Colorado Rockies]] (NL)
|0
|&nbsp;
|1
|-
|scope="row"|[[Milwaukee Brewers]] <small>(AL to NL, 1998)</small>
|0
|&nbsp;
|1 <sup>[AL]</sup>
|-
|scope="row"|[[Seattle Mariners]] (AL)
|0
|&nbsp;
|0
|- 
|}

The regular season ends after the first Sunday in October (or the last Sunday in September), after which twelve teams enter the postseason playoffs. These twelve teams consist of the six division champions and six "wild-card" teams: the team with the best overall [[win–loss record]] in each of the six divisions, and the three teams in each league with the best records other than the division champions. Four rounds of series of games are played to determine the champion:<ref>{{cite web|url=https://www.cbssports.com/mlb/news/2022-mlb-playoffs-new-postseason-format-explained-and-why-there-are-no-more-game-163-tiebreakers/|title=2022 MLB playoffs: New postseason format explained, and why there are no more Game 163 tiebreakers|last=Perry|first=Dayn|publisher=CBS Interactive Inc|date=October 5, 2022|website=CBSSports.com|accessdate=June 1, 2024}}</ref>

# [[Wild Card Series]], a best of three games playoff between the lowest seeded division champion and three "wild-card teams", the higher seeds will host all three games 
# [[American League Division Series]] and [[National League Division Series]], each a best-of-five-games series.
# [[American League Championship Series]] and [[National League Championship Series]], each a best-of-seven-games series played between the winning teams from the Division Series. The league champions are referred to as the [[Pennant (sports)|pennant]] winners.
# [[World Series]], a best-of-seven-games series played between the [[Pennant (sports)|pennant]] winners of each league.
[[File:World Series Trophy (48262268286).jpg|thumb|left|upright=0.75|The [[Commissioner's Trophy (MLB)|Commissioner's Trophy]] is awarded annually to the winning team of the [[World Series]], the league's championship series that concludes the postseason.]]
Within each league, the division winners are the 1, 2, and 3-seeds, based on win–loss records. The teams with the first, second, and third best records among non-division winners will be seeded 4, 5, and 6 respectively. Throughout the postseason, home-field advantage is awarded to the team with the higher win-loss record, with tiebreakers being applied if necessary. In the [[Wild Card Series]], the 3-seed will host the 6-seed, and the 4-seed will host the 5-seed, with the winners advancing to the [[Division Series]]. Unlike the [[NFL]], there is no reseeding between each series. In the Division Series, the 1-seed goes up against the 4/5-seed  and the 2-seed goes up against the 3/6-seed. The winners of those matches will compete in their respective [[League Championship Series]] for their [[Pennant (sports)#Baseball|league pennant]], and the pennant winners will advance to the World Series.<ref>{{cite web|url=http://bleacherreport.com/articles/1784642-mlb-playoff-format-2013-tiebreak-scenarios-wild-card-games-and-seedings|title=MLB Playoff Format 2013: Tiebreaker Scenarios, Wild Card Games and Seedings|website=[[Bleacher Report]]|date=September 23, 2013|access-date=October 13, 2013|archive-date=October 1, 2013|archive-url=https://web.archive.org/web/20131001165750/http://bleacherreport.com/articles/1784642-mlb-playoff-format-2013-tiebreak-scenarios-wild-card-games-and-seedings|url-status=live}}</ref> Since 2017, home-field advantage in the World Series is determined by regular-season records of the two league champions, replacing a system used for the prior 14 seasons where the champion of the league that won the All-Star Game would receive home-field advantage.<ref name="WS_homefield"/>

The team with home-field advantage in the Wild Card Series will host all three games, and subsequent series' will split home fields between the two teams in a 2-2-1 format in the Division Series and a 2-3-2 format in the League Championship Series and World Series, with the advantaged team hosting games 1 and 2, as well as 6 and 7 (if necessary). With this format, the home-field advantage does not usually play a large role in the postseason unless the series goes to its maximum number of games. However, because the first two games of a postseason series are hosted by the same team, a team starting with two wins will likely have momentum heading into the venue switch.<ref name="[[World Series]]">[[World Series]], sec. 3.2.2 (Game-by-Game), note 2; as of 2008, the 1981 Los Angeles Dodgers are the last team to win a World Series after losing the first two games on the road.</ref><ref name="alds">{{cite web|url=http://pressbox.mlb.com/pressbox/news/pressbox_story.jsp?ymd=20070514&content_id=1964536&vkey=pressbox&fext=.jsp|title=Major League Baseball announces revamped postseason schedule|access-date=September 7, 2008|year=2007|website=[[MLB.com]]|archive-date=April 7, 2008|archive-url=https://web.archive.org/web/20080407202248/http://pressbox.mlb.com/pressbox/news/pressbox_story.jsp?ymd=20070514&content_id=1964536&vkey=pressbox&fext=.jsp|url-status=dead}}</ref>