Wild Card Series
post-season qualifier
The Wild Card Series (WCS; formerly known as the Wild Card Game (WCG) from 2012 to 2019 and in 2021) is the opening round of postseason play in Major League Baseball (MLB), featuring the American League Wild Card Series (ALWCS) and the National League Wild Card Series (NLWCS). A single wild card game was instituted in 2012. This became a best-of-three playoff wild card series in 2020 as a one-off, and became permanent (albeit with fewer teams playing than in the 2020 series) starting in the 2022 season.
The lowest-seeded division winner and three wild card teams in each league play in a best-of-three series after the end of the regular season. The winners of each league's wild card series advance to face the two-best division winners in that league's Division Series. This expansion of the postseason abolished any regular-season-extending tie-breaker games.
Format
Under the format adopted in 2022, six teams in each league are assigned seeds for the postseason. In each league, the three division winners are seeded #1–3, per their relative winning percentages. The lowest-seeded division winner is automatically given the No. 3 seed even if one or all other wild-card teams has a better record.
This brief starts where responsible research should: with the source description of “Wild Card Series” as post-season qualifier. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as post-season qualifier. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 9, 2026. The linked authority identifier is Q114001174. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2012, 2019, 2021 and 2020.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Wild Card Series”, its source revision and the description used here.
- Expand the search: follow Wild Card Series primary sources, Wild Card Series archive and Wild research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Wild Card Series”?
- Which institution is responsible for the underlying evidence?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Wild Card Series” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.