Kalshi prices the defending two-time champion Dodgers at 32% to win the 2026 World Series, a 4-point edge over Polymarket's 28%—the cleanest divergence across the top outcomes and likely reflecting Kalshi's regulated US trader base applying a small home-market premium to baseball's most storied payroll play.
Analysis written Jul 8, 2026 · odds in the tables below are live
| Outcome |  Polymarket |  Kalshi | Spread |
|---|---|---|---|
 Los Angeles Dodgers | 0.5pp spread | ||
 New York Yankees | 0.6pp spread | ||
 Milwaukee Brewers | 0.1pp spread | ||
A Atlanta Braves | 0.2pp spread | ||
 Seattle Mariners | 0.3pp spread | ||
 Philadelphia Phillies | 0.1pp spread | ||
 Tampa Bay Rays | 0.2pp spread | ||
 Chicago Cubs | 0.2pp spread | ||
 Boston Red Sox | 0.9pp spread | ||
 Cleveland Guardians | 0.6pp spread | ||
 Chicago White Sox | - | - | |
 Texas Rangers | 0.7pp spread | ||
C Chicago WS | - | - | |
 Detroit Tigers | 0.2pp spread | ||
 Pittsburgh Pirates | 0.3pp spread | ||
 Toronto Blue Jays | 0.4pp spread | ||
 Houston Astros | 0.3pp spread | ||
 Miami Marlins | 0.1pp spread | ||
 Baltimore Orioles | 0.9pp spread | ||
 St. Louis Cardinals | 0.2pp spread | ||
 San Diego Padres | 0.6pp spread | ||
 Arizona Diamondbacks | 0.1pp spread | ||
 Minnesota Twins | 0.1pp spread | ||
 New York Mets | 0.1pp spread | ||
 Colorado Rockies | 0.4pp spread | ||
 Los Angeles Angels | 0.4pp spread | ||
 San Francisco Giants | 0.3pp spread | ||
 Washington Nationals | 0.1pp spread | ||
A Athletics | - | - | |
 Cincinnati Reds | 0.1pp spread | ||
 Kansas City Royals | 0.1pp spread | ||
A A's | - | - |
Background, methodology, and platform context
Compare 2026 MLB World Series Champion prediction market odds side by side across Polymarket, Kalshi. Platforms show similar odds, with an average spread of just 0.3pp. Close agreement often signals strong market consensus. With $70.72M in combined trading volume across 32 outcomes, this is one of the most actively traded cross-platform prediction markets.
Descriptions normalized for comparison (outcome names replaced with [OUTCOME])
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.
If [OUTCOME] wins the 2026 Pro Baseball Championship, then the market resolves to Yes.
Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.
Different platforms may use different resolution criteria, data sources, and settlement timelines.
