Post-Wild-Card refresh · Division Series begin October 3

2026 World Series Predictions: Odds and Schedule

The confirmed 2026 postseason calendar, a timestamped October 3 championship board from the exact Polymarket event after the Wild Card round, resolution rules, and research checkpoints through the Division Series.

Published July 30, 2026 · Refreshed October 3, 2026 · Wild Card Series: September 29–October 1 (completed) · Division Series: from October 3 · World Series Game 1: October 23 · Next planned refresh: October 11

The answer first

The 2026 World Series begins Friday, October 23, with a potential Game 7 on Saturday, October 31. The Wild Card Series ran September 29–October 1, the Division Series start Saturday, October 3, and the League Championship Series start October 11. On the exact Polymarket event MLB World Series Champion 2026, checked at about 16:39 UTC on October 3, the Los Angeles Dodgers led at 30.5%, followed by the Milwaukee Brewers at 17.05%, New York Yankees at 13.5%, and San Diego Padres at 10.95%. Eight named teams were still open, 22 team contracts had closed, and the event showed about $42.95 million in cumulative volume. It resolves to the team that wins the World Series—not the regular-season leader, a division winner, or a pennant winner.

October 3 snapshot: the championship board

Displayed YES prices from the public Gamma snapshot at about 16:39 UTC on October 3, 2026, the day the Division Series begin, after all four Wild Card Series ended. They are last recorded outcome prices, not executable quotes, and the volume column is each team contract's lifetime volume.

TeamDisplayed YESContract volume
Los Angeles Dodgers30.5%$684,352
Milwaukee Brewers17.05%$1,737,805
New York Yankees13.5%$608,263
San Diego Padres10.95%$1,719,374
Tampa Bay Rays10.65%$625,640
Atlanta Braves8.55%$1,442,517
Cleveland Guardians6.9%$1,219,120
Chicago White Sox4.2%$2,945,082

These are all the named teams still open. A week earlier, on September 23, the board read Dodgers 30.5%, Brewers 16.55%, Rays 10.9%, Yankees 8.5%, with 17 named teams still open: the Wild Card round moved the order below the top, with the Yankees (8.5% → 13.5%) and Padres (5.3% → 10.95%) gaining most after their sweeps. An unpriced Will another team fallback row completes the open inventory, and 22 team contracts have closed: the Wild Card losers (Phillies, Astros, Red Sox, Cubs) joined the earlier eliminations, including the Blue Jays, Orioles, Rangers, Mariners and Diamondbacks rows that were still open on September 23.

How to read this board: the top price is below one in three, so even the favorite is more likely than not to lose somewhere across four rounds. Some of the heaviest lifetime trading now sits on teams priced near 4–9%, a reminder that volume and current likelihood are different things. Check the live event for present quotes.

The official 2026 postseason calendar

September 27 · Regular season ends

MLB's 2026 schedule announcement lists Sunday, September 27 as the final regular-season day, with 15 games on the official slate.

September 29–October 1 · Wild Card Series

All four best-of-three Wild Card Series open Tuesday, September 29; Game 2 is September 30 and any Game 3 is Thursday, October 1.

October 3 · Division Series begin

Both the American League and National League Division Series start Saturday, October 3: White Sox at Guardians, Yankees at Rays, Braves at Dodgers and Padres at Brewers.

October 11 · League Championship Series

League Championship Series play begins Sunday, October 11, with the pennant winners advancing to the World Series.

October 23 · World Series Game 1

The World Series opens Friday, October 23. A deciding Game 7, if needed, would be played Saturday, October 31, the same date as the prediction event's top-level end field.

December 31 is an edge-case deadline

The event's written rules use December 31, 2026 Eastern Time for cancellation, postponement, or no-winner fallback handling. That exceptional deadline is separate from the postseason calendar.

Calendar discipline: postseason dates come from MLB's published schedule as reported by CBS Sports and MLB.com; game times and TV windows are set separately. The prediction event's October 31 end field matches a possible Game 7 but does not by itself settle the market.

2026 World Series research timeline

July 30 · Durable baseline
The official MLB schedule announcement, final-day Stats API slate, official postseason-window API query, exact Gamma event, public Polymarket page, every local event hub, complete blog archive, sitemap, proactive queue, today's publisher state, and latest local GSC reports were checked. No team price was preserved.
Late August through September · Playoff-race wave
As division and Wild Card races narrow, search intent should move from broad season forecasts toward qualification paths, remaining schedules, tiebreak questions, and individual team championship scenarios. A model projection or market price still does not prove qualification.
September 23 · Pre-postseason refresh
The published postseason calendar was added and the championship board recorded: Dodgers 30.5%, Brewers 16.55%, Rays 10.9%, Yankees 8.5%; 17 named teams open, 13 closed; about $41.04M cumulative volume.
September 27 · Regular-season finale
MLB's official schedule lists 15 games on the final day. Division titles, Wild Card berths, or seeding questions may become final around this window, but a postseason berth is not a World Series victory.
September 29–October 1 · Wild Card Series (completed)
Four best-of-three series, settled on the field: the Yankees swept the Red Sox, the White Sox swept the Astros, the Padres swept the Cubs, and the Braves beat the Phillies 2–1. Losing teams became unable to win the World Series, and their contracts closed to No under the elimination rule.
October 3 · Post-Wild-Card refresh (this update)
The board was re-recorded the day both Division Series open: Dodgers 30.5%, Brewers 17.05%, Yankees 13.5%, Padres 10.95%, Rays 10.65%, Braves 8.55%, Guardians 6.9%, White Sox 4.2%; eight named teams open, 22 closed; about $42.95M cumulative volume.
October 3 · Division Series begin
Both leagues start their Division Series with White Sox at Guardians, Yankees at Rays, Braves at Dodgers and Padres at Brewers; the field narrows to four teams.
October 11 · League Championship Series begin
The pennant rounds decide the two World Series participants.
October 23 · World Series Game 1
The championship series opens; only two team contracts can still resolve Yes.
October 31 · Potential Game 7 and event end date
A deciding Game 7 would fall on this date, which the reviewed event metadata also carries as its end field. Researchers should not assume a countdown alone resolves the market: the winner and exceptional fallback are defined in the event description.
December 31 · Written exceptional boundary
If the season is cancelled, postponed beyond this date in Eastern Time, or no World Series winner is declared by then, the reviewed rules assign the event to Other. Preserve the current wording before evaluating any extraordinary delay.

What the verified World Series prediction event contains

The public event was first checked at approximately 14:05 UTC on July 30, rechecked at about 13:00 UTC on September 23, and again at about 16:39 UTC on October 3, after the Wild Card Series. Counts below separate named teams from the special fallback row and describe API state at one timestamp rather than promising that every field will stay unchanged.

One exact championship event

The top-level event is titled MLB World Series Champion 2026, uses slug mlb-world-series-champion-2026, was active and not closed, and displayed all 30 MLB clubs as named outcomes.

8 named teams still open

On July 30 all 30 named-team rows were active and accepting orders. By September 23, 17 named teams remained open; after the Wild Card Series, the October 3 check shows eight named teams still open and 22 team contracts closed. Each is a separate YES/NO contract, not an official MLB forecast.

One separate Other row

The event metadata also retained an Other fallback row. It was marked inactive while its accepting-orders field was still true, an inconsistency that reinforces why status flags and resolution text must be reviewed together.

Timestamped event scale

Top-level metadata reported about $42.95 million in cumulative volume, $233,000 in 24-hour volume, and $0.86 million in liquidity on October 3 (September 23: $41.04 million, $71,900 and $2.05 million; July 30: $36.93 million and $4.61 million). Those fields are a dated event-level snapshot, not a guarantee of executable depth in any team contract.

Prices are timestamped

The October 3 board above is a dated record. A last trade can move before Google recrawls this page and can differ from the current bid, ask, or available size; use the live event for present quotes.

Status is not settlement

Active, closed, accepting-orders, and end-date fields describe platform state. None by itself proves that a team has won, been eliminated, or met the written resolution condition.

Why a board appears now: in July this page deliberately published no prices months before the postseason. With the field cut to eight and the Division Series starting, a dated snapshot is useful context, as long as it is read as history rather than a live quote.

How the 2026 World Series market resolves

1. World Series champion only

The reviewed event selects the team that wins the 2026 MLB World Series. Best regular-season record, division title, Wild Card berth, American League pennant, or National League pennant is not the same outcome.

2. Official MLB source first

The description names official Major League Baseball information as the primary resolution source. It also allows a consensus of credible reporting, but a prediction model, betting screen, fan post, or market price is not the named primary evidence.

3. Impossibility can settle No

The reviewed rule says a listed team resolves No when it becomes impossible for that team to win under MLB rules, including playoff elimination. Being far behind, having a difficult schedule, or receiving a low price is not itself elimination.

4. Qualification is not victory

A team can clinch a postseason berth or win its division while still needing to advance through later rounds. Preserve the specific team question and do not substitute a different MLB market's result.

5. Other covers exceptional failure

If the season is cancelled, postponed beyond December 31, or produces no declared World Series winner by that boundary, the reviewed description sends the event to Other. Normal scheduling expectations do not erase that clause.

6. Save the current evidence

A useful audit record contains the event slug, component question, full description, active and closed flags, order-acceptance state, UTC timestamp, and official MLB result—not only a cropped price or countdown.

Resolution context is contract-specific: the October 31 top-level field does not replace the December 31 exceptional clause. If wording is clarified later, the exact current team contract and official result should be checked again rather than assuming this July snapshot remains controlling.

Why 2026 World Series search demand should rise

This hub is published 59 days before the official regular-season finale and 93 days before the prediction event's top-level end date. It was selected for a scheduled, multi-wave future demand curve—not because one team made news on July 30. MLB supplies a predictable playoff race, a 15-game final regular-season day, several elimination rounds, and a championship resolution, while the exact event already has substantial activity.

Playoff-race wave

Late-summer searches should increasingly combine team names with playoff chances, Wild Card standings, remaining games, and World Series predictions. This guide provides a stable resolution layer while those team-level inputs change.

Schedule and bracket wave

With the postseason dates published, searches shift to the bracket, the Wild Card matchups, TV windows, and the October 23 World Series start. The calendar section above answers those date questions directly.

Elimination-round waves

Each postseason round creates new qualification and elimination questions. Search demand may shift quickly from broad championship odds to a smaller set of surviving teams, so official results must outrank stale snippets.

Championship-resolution wave

Near the World Series, intent should concentrate around game dates, series status, winner scenarios, and how team contracts settle. The answer-first section and FAQ are designed to remain useful through that final wave.

Forecast, not a traffic or outcome guarantee: a fixed final regular-season date and an established championship event make rising attention plausible, but search volume, rankings, liquidity, forecast accuracy, and the eventual winner remain uncertain. This is an educational watchlist and resolution guide.

A practical World Series research workflow

Start with MLB's calendar

Verify the regular-season finale and, once published, postseason game dates on official MLB surfaces. Do not turn a prediction event's end field or an old search snippet into an official schedule.

Confirm the team can still win

Use official standings, qualification rules, brackets, and game results to establish whether a team remains eligible. “Unlikely” and “eliminated” are different states under the reviewed rule.

Read the exact team contract

Open the top-level event and the named team's component question. Check description, active and closed state, order acceptance, and any clarification before interpreting a quote or resolution.

Separate last trade from depth

The prediction-market odds guide and price-to-probability explainer show why last trade, bid, ask, spread, and available size should be recorded separately.

Measure uncertainty honestly

The risk-management guide and accuracy guide explain why market consensus can be wrong and why clear settlement evidence matters.

Use movers as leads

The biggest-movers watchlist can surface a team contract for investigation. It cannot identify whether the move came from an injury, result, thin order book, schedule news, or one large order.

Keep sports clusters distinct

The F1 guide, US Open guide, and Ballon d'Or guide share calendar-driven demand, but their qualification rules, official sources, and settlement terms do not transfer to baseball.

Understand the product

The prediction markets versus sports betting guide explains why a tradable binary contract and source-based settlement differ from a conventional fixed-odds ticket.

Frequently asked questions

When does the 2026 MLB regular season end?

Major League Baseball's official schedule places the final day of the 2026 regular season on Sunday, September 27. The official Stats API listed 15 scheduled regular-season games for that date at the July 30 research check.

When are the 2026 World Series dates?

The 2026 World Series begins Friday, October 23, with a potential Game 7 on Saturday, October 31. The Wild Card Series run September 29–October 1, the Division Series start October 3, and the League Championship Series start October 11.

Who is favored to win the 2026 World Series on Polymarket?

At about 16:39 UTC on October 3, 2026, the Los Angeles Dodgers led the MLB World Series Champion 2026 event at a displayed 30.5%, followed by the Milwaukee Brewers (17.05%), New York Yankees (13.5%) and San Diego Padres (10.95%). Displayed prices change continuously and differ from executable quotes.

Is there an active 2026 World Series prediction market?

Yes. The exact MLB World Series Champion 2026 event was active and not closed at the October 3, 2026 check, with eight named teams still open, 22 team contracts closed, and about $42.95 million in cumulative volume.

How does the 2026 World Series market resolve?

The reviewed event resolves to the team that wins the 2026 MLB World Series. It names official MLB information as the primary source and also permits a consensus of credible reporting.

When can a team's World Series contract resolve No?

The reviewed rules say a listed team's contract resolves No when it becomes impossible for that team to win the World Series under MLB rules, including elimination from the playoffs. A low price or unfavorable projection is not itself elimination.

What happens if the 2026 MLB season is cancelled or delayed?

The reviewed rules assign the result to Other if the 2026 MLB season is cancelled, postponed beyond December 31, 2026 Eastern Time, or has no declared World Series winner by that deadline.

When will this World Series 2026 guide be refreshed?

The next planned refresh is October 11, 2026, when the League Championship Series begin, with a settlement record after the World Series ends. Earlier updates follow any material change in event status or rules.

Related analysis on the blog

📈 Every live Polymarket market on the topic: MLB odds

Sources and methodology

Planning metadata: kind=proactive · event_id=world-series-2026 · target_date=2026-09-27 · primary_keyword=2026 World Series predictions · cluster=sports/baseball/world-series · next_refresh=2026-10-11

Educational use only. Polymarket View is an independent research site, not Polymarket or Major League Baseball. This page does not recommend a team, promise a result, provide a private pick, or guarantee search traffic, liquidity, forecast accuracy, or returns. Availability and legality can vary by jurisdiction. Check current platform terms, official MLB information, and the exact contract before relying on any market observation.