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    How the MLB postseason works: the 12-team playoff format explained

    Twelve teams make the MLB postseason, six per league: three division winners and three Wild Cards.[1] The top two seeds in each league skip the best-of-three Wild Card Series. After that come a best-of-five Division Series and best-of-seven League Championship Series and World Series.[2][3][4]

    Editor reviewedUpdated ExplainerSports

    MLB’s postseason is a 12-team bracket that MLB introduced in 2022.[5] This page explains how teams qualify, how they are seeded and how each round works. Results for 2026 are on the 2026 postseason tracker.

    Who qualifies

    Each of MLB’s two leagues, the American League and the National League, sends six teams. They are the three division winners plus the three best other teams, called Wild Cards.[1]

    Seeds 1 to 3 in each league go to division winners, ranked by record. Seeds 4 to 6 go to the Wild Cards. A division winner is always seeded above a Wild Card, even if the Wild Card has a better record.[6] Since tiebreaker games (Game 163) were eliminated, ties are settled by formula, starting with head-to-head record.[7]

    Round 1: Wild Card Series

    The top two teams in each league get a week off, called a bye.[2] The other four play short best-of-three series, and the winners move on.[8]

    The No. 3 seed plays No. 6 and No. 4 plays No. 5. The higher seed hosts all three games.[8] This format replaced the single-elimination Wild Card Game, which was used in 2012-19 and 2021.[5] In 2026, all four Wild Card Series were broadcast by NBC, and two of them streamed only on Peacock.[9]

    Round 2: Division Series

    The Division Series is best-of-five: the first team to win three games advances.[3]

    The Division Series uses a 2-2-1 format, with home field going to the higher seed. The bracket is fixed, not reseeded. The No. 1 seed plays the 4-5 winner and the No. 2 seed plays the 3-6 winner, so the top seed never meets another division winner in this round.[3]

    Rounds 3 and 4: LCS and World Series

    The two Division Series winners in each league meet in the League Championship Series (ALCS and NLCS). The pennant winners then meet in the World Series. Both rounds are best-of-seven, with Games 5 to 7 played only if needed.[4] Home field in the World Series goes to the team with the better regular-season record, whatever its seed.[10] The 2026 World Series is scheduled for 23 to 31 October.[11]

    Rule differences in October

    • No automatic runner. Extra innings in the postseason start without a runner on second base.[12]
    • ABS challenges. The Automated Ball-Strike Challenge System, new in 2026, works the same way as in the regular season.[13]

    Could the format change?

    In October 2026 MLB proposed shortening the regular season to 154 games from 2029. A league spokesman said this would allow a longer Division Series. The proposal depends on players accepting a salary cap.[14][15] See MLB labor talks 2026.

    Next in the crash course

    Questions readers ask

    How many teams make the MLB playoffs?

    Twelve, six from each league. Each league sends its three division winners and three Wild Card teams.[1]

    Which teams get a bye?

    The No. 1 and No. 2 seeds in each league skip the Wild Card Series and go straight to the Division Series.[2]

    Can a Wild Card team be seeded above a division winner?

    No. Division winners take precedence in seeding even if a Wild Card team has a better record.[6]

    Who hosts Wild Card Series games?

    The higher seed hosts all three games.[8]

    Is there a ghost runner in postseason extra innings?

    No. The automatic runner on second base used in the regular season is not used in the postseason.[12]

    Who gets home-field advantage in the World Series?

    The pennant winner with the better regular-season record, regardless of seeding.[10]

    Sources

    · 15 claims from 3 publishers

    Each numbered claim is a statement we checked against the sources listed with it. Tap a number in the text to see its sources in place.

    1. [1]

      The MLB postseason has 12 teams, six from each league - the three division winners and three Wild Card teams in each league. confirmedas of 2026-10-11

    2. [2]

      In each league the No. 1 and No. 2 seeds receive first-round byes and go straight to the Division Series. confirmedas of 2026-10-11

    3. [3]

      The Division Series is best-of-five in a 2-2-1 format with home-field advantage to the higher seed; the No. 1 seed plays the winner of the 4-5 Wild Card Series and the No. 2 seed plays the winner of the 3-6 series. confirmedas of 2026-10-11

    4. [4]

      MLB's 2026 schedule lists each League Championship Series and the World Series as up to seven games, with the later games played only if necessary (best-of-seven). confirmedas of 2026-10-09

    5. [5]

      MLB introduced its current 12-team postseason format in 2022, replacing the single-elimination Wild Card Game with a best-of-three Wild Card Series. confirmedas of 2026-10-11

    6. [6]

      Division winners are seeded ahead of Wild Card teams even if a Wild Card team has a better record. confirmedas of 2026-10-11

    7. [7]

      MLB no longer plays tiebreaker games (Game 163); ties are resolved mathematically, starting with head-to-head record. confirmedas of 2026-10-11

    8. [8]

      In the best-of-three Wild Card Series, the No. 3 seed plays the No. 6 seed and the No. 4 seed plays the No. 5 seed, with every game at the higher seed's park. confirmedas of 2026-10-11

    9. [9]

      NBC held rights to the entire 2026 Wild Card round, and the White Sox-Astros and Cubs-Padres series aired exclusively on the Peacock streaming service. confirmedas of 2026-09-29

    10. [10]

      Home-field advantage in the World Series goes to the pennant winner with the better regular-season record, regardless of seeding. confirmedas of 2026-10-11

    11. [11]

      The 2026 World Series is scheduled to start on Friday 23 October and, if it goes seven games, end on Saturday 31 October, with all games on FOX (streaming on FOX One, Spanish on FOX Deportes); Games 1, 2, 6 and 7 are at the team with the better 2026 record. confirmedas of 2026-10-09

    12. [12]

      The automatic runner on second base in extra innings, used in the regular season, is not used in the postseason. confirmedas of 2026-10-11

    13. [13]

      The Automated Ball-Strike (ABS) Challenge System debuted in MLB in 2026 and operates in the postseason under the same rules as in the regular season. confirmedas of 2026-10-11

    14. [14]

      On 8 October 2026 MLB proposed cutting the regular season from 162 to 154 games from 2029, contingent on players accepting a salary cap and floor. confirmedas of 2026-10-08

    15. [15]

      MLB spokesman Glen Caplin said a shorter season would help player health and allow a longer Division Series. confirmedas of 2026-10-08

    Revision history (1)
    1. Page created.

    Created Oct 11, 2026. Last reviewed by an editor on Oct 11, 2026. Next scheduled review: Mar 1, 2027.

    Cite this page

    "How the MLB postseason works: the 12-team playoff format explained." ContentLora, updated Oct 11, 2026. https://contentlora.com/explain/how-mlb-postseason-works

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