MLB World Series Champion 2026

Polymarket Sports › MLB Closes Oct 31 · $199K today · $45.5M traded · $1.1M at stake · prices read 9 min ago

The odds

61%Milwaukee Brewers

Milwaukee Brewers61%▼ 1
Tampa Bay Rays39%▲ 7
Cleveland Guardians<1%▼ 6

How the odds have moved

Not enough history yet.

Each outcome's chance over time on Polymarket. The dots along the bottom are headlines about its subject: point at one to read it.

Every outcome

Outcome	Chance	Day	Bid	Ask	Pays	Traded
Milwaukee Brewers	61%	▼ 1	60¢	63¢	$1.58	$2.1M
Tampa Bay Rays	39%	▲ 7	38¢	40¢	$2.50	$913K
Cleveland Guardians	<1%	▼ 6		0¢		$1.9M
New York Yankees	<1%	▼ 4		0¢		$681K
Toronto Blue Jays	<1%			0¢		$709K
Baltimore Orioles	<1%			0¢		$1.9M
Boston Red Sox	<1%	▼ 1		0¢		$2.4M
Chicago White Sox	<1%	▼ 5		0¢		$3.2M
Minnesota Twins	<1%			0¢		$427K
Detroit Tigers	<1%			0¢		$1.4M
Kansas City Royals	<1%			0¢		$1.3M
Houston Astros	<1%	▼ 2		0¢		$1.8M
Seattle Mariners	<1%			0¢		$875K
Los Angeles Angels	<1%			0¢		$1.7M
Texas Rangers	<1%	▼ 1		0¢		$1.2M
Athletics	<1%			0¢		$259K
Atlanta Braves	<1%	▼ 4		0¢		$1.6M
New York Mets	<1%			0¢		$1.1M
Philadelphia Phillies	<1%	▼ 5		0¢		$1.5M
Miami Marlins	<1%			0¢		$2.1M
Washington Nationals	<1%			0¢		$2.6M
St. Louis Cardinals	<1%			0¢		$2.3M
Chicago Cubs	<1%	▼ 2		0¢		$1.5M
Cincinnati Reds	<1%			0¢		$1.7M
Pittsburgh Pirates	<1%			0¢		$815K
Los Angeles Dodgers	<1%	▼ 6		0¢		$1.3M
San Diego Padres	<1%	▼ 5		0¢		$1.8M
San Francisco Giants	<1%			0¢		$1.6M
Arizona Diamondbacks	<1%	▼ 1		0¢		$635K
Colorado Rockies	<1%			0¢		$2.2M

"Pays" is what a $1 stake returns if that outcome happens, at the price shown (before any fees). Bid and ask are the best prices to sell and buy "Yes".

The same question on Kalshi

Pro Baseball Champion (2026)Tampa Bay RaysKalshi 38%Polymarket 39%1 pts apart

Pro Baseball Champion (2026)

62%Milwaukee

Milwaukee62%
Tampa Bay38%▲ 6
Cleveland<1%▼ 6

Shown side by side, never averaged: each venue's rules decide its own market.

The news: World Series, MLB World, Milwaukee Brewers

Search ›

No recent headlines name this market's subject.

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Rodri<1%
Khvicha Kvaratskhelia<1%
Erling Haaland<1%
Ousmane Dembélé<1%
Michael Olise<1%
Fabian Ruiz<1%
Jude Bellingham<1%
Vinícius Júnior<1%
Declan Rice<1%
Vitinha<1%
Achraf Hakimi<1%
Bruno Fernandes<1%
Luis Diaz<1%
Lautaro Martinez<1%
Pau Cubarsi<1%

Odds are traders' prices on Kalshi, Polymarket, ForecastEx and Crypto.com, not forecasts by 4Search. Prices read from the venues 3 min ago. Prices may be delayed. Money traded on Kalshi and ForecastEx is estimated from contracts. Not betting or investment advice.

About this market

VenuePolymarket

Trading closesOct 31, 2026 7:55 PM ET

Traded$45.5M

Today$199K

This week$45.5M

At stake$1.1M

In the news1 headlines today, 4 this week

Followed here sinceOct 19, 2026

The rules

This market will resolve according to the team that wins the 2026 MLB World Series. If at any point it becomes impossible for a listed team to win the 2026 MLB World Series per the rules of MLB (e.g., they are eliminated in the playoffs), the corresponding market will resolve to “No”. If the 2026 MLB season is cancelled, postponed after December 31, 2026 ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source will be official information from MLB (https://www.mlb.com/); however, a consensus of credible reporting may also be used.

The full rules are on the market's page at Polymarket.

Reading the odds

A prediction market trades contracts that pay $1 if something happens. Its price is the market's chance: a contract at 62¢ means traders give it 62%. Each number here is the midpoint between the best bid and offer, or the last trade when they are more than ten cents apart.

For a question with many answers (who wins, which range a number lands in), the chances are scaled to add up to 100%. A price ladder ("above 4.25%, above 4.50% ...") gives a whole distribution: its median is where traders see an even chance either way.

Kalshi is a U.S. exchange regulated by the CFTC; its money is counted in contracts, shown here as dollars at their price. Polymarket counts dollars. ForecastEx is Interactive Brokers' exchange, regulated by the CFTC; its contracts too are shown as dollars at their price. Crypto.com lists its markets on Crypto.com | Derivatives North America, a U.S. exchange regulated by the CFTC; it reports the dollars traded. Where more than one asks the same question, each is shown, never averaged.

Prefer betting odds? Switch to American (+150) or decimal (2.50) odds at the top of the page.

Prediction-market prices are what traders pay for each outcome on Kalshi, Polymarket, ForecastEx and Crypto.com, read as the market's implied chance. They are not forecasts by 4Search, can move fast and can be wrong; they are read every few minutes and may be delayed. Money traded on Kalshi and ForecastEx is estimated from contracts at their price. News comes from the 4Search index; prices of stocks, rates and coins from 4Search Finance. Nothing here is betting, financial or investment advice. Terms of use.