Baseball Playoffs Odds | MLB Wild Card Series & 2026 World Series Odds (MLB Playoffs Predictions)

The 2026 MLB regular season wrapped up on Sunday, and the field for the MLB playoffs is officially locked in.

Twelve teams are chasing the Commissioner's Trophy, and the Houston Astros made history along the way, becoming the first division winner in a full 162-game season to finish with a non-winning record.

Before any club can call itself a World Series champion, it has to clear the wild card round, the Division Series, and the Championship Series in that exact order.

Here is a full breakdown of the 2026 World Series odds and every step of the baseball playoffs bracket, straight off live Polymarket boards, along with the current Polymarket promo code: ACTION, which allows new users to Deposit $10, Get a $50 Trading Bonus!

2026 World Series Odds: The Full Championship Field on Polymarket

This is where the bracket ends up, so it makes sense to start here before working backward through the rounds.

The Los Angeles Dodgers are the clear favorite to win the 2026 World Series, and for good reason.

Los Angeles is chasing a three-peat after winning back-to-back titles in 2024 and 2025, something no team has pulled off since the Yankees' run from 1998 to 2000.

The Brewers are the market's other clear tier-one contender, and it isn't close between the two of them and everyone else.

Milwaukee finished with the best record in the sport at 103-59, but this Polymarket board still has the Dodgers as the sharper play at nearly double Milwaukee's price.

Everyone from the Rays down to the White Sox is priced as a true long shot, which makes sense once you consider how many rounds separate those teams from October's finish line.

MLB Division Series Qualifiers: Who Survives the Wild Card Round?

But in order to win the World Series, a team first has to make it through the wild card, Division Series, and Championship Series rounds, and this market is the first checkpoint.

The top two seeds in each league already clinched a bye straight to the Division Series, so they don't appear on this particular board.

The Tampa Bay Rays and Cleveland Guardians are sitting out the wild card round on the American League side, while the Milwaukee Brewers and Los Angeles Dodgers are doing the same in the National League.

Everyone else still has to win a best-of-three series just to reach the Division Series, and that's exactly what this market is pricing.

The Yankees and Astros sit at the top of this board because they're both favored in their respective wild card matchups, but neither price is overwhelming.

Houston is the more interesting name here: the Astros backed into the division title at 81-81, becoming the first division winner in a full MLB season with a non-winning record, and they still open as the favorite over the White Sox in their best-of-three.

The four National League contenders are bunched much tighter than the American League side, with the Phillies and Cubs both sitting right around a coin flip after Philadelphia's own Game 162 scramble to even reach the wild card round.

ALCS Qualifiers: American League Championship Series Odds

Once a team clears the wild card and Division Series rounds, the next checkpoint on the road to the World Series is the League Championship Series.

This market covers all six American League playoff teams, including the two that already have a bye into the Division Series.

Notice that the two teams with byes, the Guardians and Rays, are also the two favorites here, which makes sense since they get to skip the wild card round entirely and rest up for the Division Series.

Cleveland actually outprices Tampa Bay for the ALCS spot despite the Rays owning the better regular-season record, a sign the market likes Cleveland's roster matchups more than the raw win total suggests.

The four teams still fighting through the wild card round are naturally priced lower here than they were on the Division Series board, since they each have an extra round left to survive first.

NLCS Qualifiers: National League Championship Series Odds

The National League side of the bracket runs through the same three checkpoints, and this market covers all six NL playoff teams.

Milwaukee's regular season was so dominant that it shows up in this market's pricing too, not just the World Series odds table above.

A 98¢ Yes price is about as close to a lock as this format ever produces, and it says the market thinks Milwaukee's Division Series bye and 103-win season make the NLCS close to a formality.

The Dodgers are a distant second at 62%, still comfortably the top non-Brewers team, while the Padres and Braves land in a similar range to each other despite Atlanta holding the better seed.

Philadelphia and the Cubs are priced as true long shots here, since both still have to survive a wild card series before the Division Series even starts.

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American League Champion Odds: Can Anyone Catch the Rays?

Winning the pennant is the last step before the World Series, and the American League field is as flat as any market covered here.

Tampa Bay's AL East title and top seed make the Rays a narrow favorite, but four other teams are realistically within shouting distance.

The Rays, Yankees, and Guardians are separated by just a few cents apiece, which tracks with how bunched the ALCS Qualifiers board above already looked.

Boston and Houston occupy a clear second tier, priced as plausible pennant winners but not favorites in any single round they'd have to survive to get there.

The White Sox close out the board as the biggest long shot in the American League, reflecting just how many rounds of upset results Chicago would need to string together.

National League Champion Odds: Dodgers Lead a Loaded Field

The National League pennant race is far less balanced than the American League's, and Polymarket's 2026 World Series odds table above already hinted at why.

The Dodgers and Brewers have separated themselves from the rest of a talented six-team field.

At 40%, the Dodgers are priced meaningfully higher here than in any other market on this page, underlining just how much of the World Series favorite tag is really a National League pennant conversation.

The Braves and Padres are priced identically despite Atlanta's better seed, a gap the market may be pricing on roster health or recent form more than seeding alone.

The Cubs and Phillies round out the field at 8% apiece, both still needing to win a wild card series just to keep this particular ticket alive.

MLB Playoffs Price Analysis: What's Moving the Market

The single biggest story shaping these MLB playoffs markets is the gap between Milwaukee's regular-season dominance and its World Series price.

A 103-win team being priced behind a 100-win team for the title says the market is weighing the Dodgers' pitching depth and recent championship pedigree just as heavily as the raw win totals.

On the other end of the spectrum, the Astros' path is the most unusual story on the board: a division winner with a non-winning record still landing as the favorite in its own wild card series.

That kind of gap between narrative and price is exactly the sort of spot worth watching as the prediction markets react to real results over the next two weeks.

The National League wild card race stayed volatile into Game 162, and the Phillies' late scramble for a spot explains why their price sits below the Cubs across every round covered here.

Anyone wanting to track these lines as the bracket plays out can find the full list of current markets through the prediction market apps Action Network tracks for exactly this kind of live-odds monitoring.

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MLB Playoffs: Final Thoughts

Six markets, three rounds, and one clear favorite at every stop: the Dodgers and Brewers are the two teams to beat across this entire baseball playoffs bracket.

That said, the wild card round starts almost immediately, and a single early upset can reshape every market covered here within days.

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MLB Playoffs Odds FAQs

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

The Los Angeles Dodgers are the favorite at 30% Yes (30¢), followed by the Milwaukee Brewers at 18% Yes (18¢). No other team is priced above 11%.

Which teams already have a bye into the MLB Division Series?

The Tampa Bay Rays and Cleveland Guardians in the American League, along with the Milwaukee Brewers and Los Angeles Dodgers in the National League, all clinched a bye straight to the Division Series as the top two seeds in their respective leagues.

Who is favored to win the American League pennant?

The Tampa Bay Rays lead the American League Champion market at 28% Yes (28¢), narrowly ahead of the New York Yankees at 27% and the Cleveland Guardians at 24%.

Who is favored to win the National League pennant?

The Los Angeles Dodgers lead the National League Champion market at 40% Yes (40¢), with the Milwaukee Brewers next at 26% Yes (26¢).

What is the current Polymarket promo code for the MLB playoffs?

The current Polymarket promo code is ACTION, which unlocks a $50 trading bonus for new users who deposit $10.

How do Polymarket's MLB playoffs contracts work?

Each contract pays out $1 per share if the underlying outcome happens and $0 if it doesn't, so a share bought at 30¢ returns a profit of 70¢ if that team wins, or the full stake if it loses.

When does the MLB playoffs bracket start?

The Wild Card Series is scheduled to begin Tuesday, September 29, with the Division Series, Championship Series, and World Series following in order through October.

Who is the biggest long shot with a real shot at the World Series?

The Chicago White Sox are the longest shot still standing at 2% Yes (2¢) to win the 2026 World Series, needing to clear every round covered on this page.

Are there more baseball playoffs markets available on Polymarket?

Yes, Polymarket lists additional series-length, individual matchup, and player-based markets throughout the MLB playoffs beyond the six championship and qualifier markets covered here.