MLB World Series Champion 2026 Predictions

Who Will Win the 2026 MLB World Series?

Polymarket traders are placing bets on which team will claim the October crown in 2026. The market closes on Oct 31, 2026, giving fans and bettors nearly two seasons to watch the drama unfold. Eight teams dominate current positioning, with Los Angeles Dodgers emerging as the clear favorite among prediction-market participants.

Dodgers Lead 2026 World Series Odds at 30%

The Los Angeles Dodgers command the highest implied probability at 30%, followed by the New York Yankees at 15%. The Atlanta Braves and Milwaukee Brewers each sit at 9%, while the Seattle Mariners (6%), Philadelphia Phillies (5%), Tampa Bay Rays (3%), and Toronto Blue Jays (3%) round out the field. These percentages reflect what Polymarket traders believe about each team's October chances two years out.

What Could Shift the 2026 World Series Favorites

Roster changes, injuries, trades, and draft performance will reshape these odds significantly before October 2026 arrives. Major acquisitions, unexpected breakout seasons, or veteran retirements could swing probability away from today's favorites toward underdogs. Teams currently outside the listed eight could also enter the market as traders reassess competitive windows. Watch the offseason moves closely—they often signal where sharp money expects to flow.

More: read our Polymarket review, compare the best prediction market apps, or bet on sports with a US sportsbook.