Pro BB (MLB)
Will the Seattle Mariners win the 2026 World Series?
Settled: Milwaukee Brewers
Decided by MLB official results
Result posted: Thu Oct 29, 9:51 AM ET
Trading stopped on Polymarket: Thu Sep 3, 7:14 AM ET
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The short version
It stays open until the season or tournament has a winner.
Possible results
Milwaukee BrewersMilwaukee Brewers wins.Yes
What has to happen
Milwaukee Brewers wins, under the rules.
Tampa Bay RaysTampa Bay Rays wins.No
What has to happen
Tampa Bay Rays wins, under the rules.
New York YankeesNew York Yankees wins.No
What has to happen
New York Yankees wins, under the rules.
Toronto Blue JaysToronto Blue Jays wins.No
What has to happen
Toronto Blue Jays wins, under the rules.
Show 27 more results
Baltimore OriolesBaltimore Orioles wins.No
What has to happen
Baltimore Orioles wins, under the rules.
Boston Red SoxBoston Red Sox wins.No
What has to happen
Boston Red Sox wins, under the rules.
Cleveland GuardiansCleveland Guardians wins.No
What has to happen
Cleveland Guardians wins, under the rules.
Chicago White SoxChicago White Sox wins.No
What has to happen
Chicago White Sox wins, under the rules.
Minnesota TwinsMinnesota Twins wins.No
What has to happen
Minnesota Twins wins, under the rules.
Detroit TigersDetroit Tigers wins.No
What has to happen
Detroit Tigers wins, under the rules.
Kansas City RoyalsKansas City Royals wins.No
What has to happen
Kansas City Royals wins, under the rules.
Houston AstrosHouston Astros wins.No
What has to happen
Houston Astros wins, under the rules.
Seattle MarinersSeattle Mariners wins.No
What has to happen
Seattle Mariners wins, under the rules.
Los Angeles AngelsLos Angeles Angels wins.No
What has to happen
Los Angeles Angels wins, under the rules.
Texas RangersTexas Rangers wins.No
What has to happen
Texas Rangers wins, under the rules.
AthleticsAthletics win.No
What has to happen
Athletics win, under the rules.
Atlanta BravesAtlanta Braves wins.No
What has to happen
Atlanta Braves wins, under the rules.
New York MetsNew York Mets wins.No
What has to happen
New York Mets wins, under the rules.
Philadelphia PhilliesPhiladelphia Phillies wins.No
What has to happen
Philadelphia Phillies wins, under the rules.
Miami MarlinsMiami Marlins wins.No
What has to happen
Miami Marlins wins, under the rules.
Washington NationalsWashington Nationals wins.No
What has to happen
Washington Nationals wins, under the rules.
St. Louis CardinalsSt. Louis Cardinals wins.No
What has to happen
St. Louis Cardinals wins, under the rules.
Chicago CubsChicago Cubs wins.No
What has to happen
Chicago Cubs wins, under the rules.
Cincinnati RedsCincinnati Reds wins.No
What has to happen
Cincinnati Reds wins, under the rules.
Pittsburgh PiratesPittsburgh Pirates wins.No
What has to happen
Pittsburgh Pirates wins, under the rules.
Los Angeles DodgersLos Angeles Dodgers wins.No
What has to happen
Los Angeles Dodgers wins, under the rules.
San Diego PadresSan Diego Padres wins.No
What has to happen
San Diego Padres wins, under the rules.
San Francisco GiantsSan Francisco Giants wins.No
What has to happen
San Francisco Giants wins, under the rules.
Arizona DiamondbacksArizona Diamondbacks wins.No
What has to happen
Arizona Diamondbacks wins, under the rules.
Colorado RockiesColorado Rockies wins.No
What has to happen
Colorado Rockies wins, under the rules.
another teamanother team wins.No
What has to happen
another team wins, under the rules.
Each result is its own market, so the chances may not add up to exactly 100%.
The one trap
If the 2026 MLB season is cancelled, postponed after December 31, 2026 ET, or there is otherwise no winner declared within that timeframe, the market settles as “Other”.