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World Series · 2026: compare 15 verified outcomes on Kalshi and Polymarket. Find the cheaper YES price, before fees.
New here? Buy YES at 40% (40¢). It pays $1 if the outcome happens, $0 if it doesn’t. A lower price means your $100 buys more contracts.
Payouts assume YES and include your original stake, before fees. Prices can change.
Follow Congress, governors and key statewide races. See how Kalshi and Polymarket price the same outcomes.
These are market prices, not our predictions. We check that contracts cover the same outcome before comparing them. Lower % means a cheaper YES.
Lower % means a cheaper YES price. Green marks the lower valid price; ties are labelled. Displayed prices are rounded to whole percentages, while comparisons use exact quotes. Payout examples show the total returned on $100 if the outcome resolves YES, including your original stake. If it resolves NO, you receive $0. Examples exclude fees and assume the full $100 buys at the displayed price.
See both prices at a glance. Open a market to explore every outcome.
Verified snapshot. Oldest quote: 03 Sep 2026, 16:26 UTC. A lower percentage is the cheaper YES, so the same $100 buys more contracts. The last column is what that $100 returns in total at the cheaper price if the outcome resolves YES, before venue fees. Live prices replace this table when the feed connects. Prices are rounded; comparisons use exact quotes. Unreliable or lightly traded comparisons are not ranked.
| Outcome | Kalshi YES | Polymarket YES | Cheaper venue | $100 returns if YES |
|---|---|---|---|---|
| Arizona Diamondbacks to win the 2026 World Series | 1% | 1% | Kalshi | $10,000 |
| Atlanta Braves to win the 2026 World Series | 7% | 6% | Polymarket | $1,562 |
| Boston Red Sox to win the 2026 World Series | 5% | 6% | Kalshi | $2,000 |
| Chicago Cubs to win the 2026 World Series | 5% | 6% | Kalshi | $2,000 |
| Cleveland Guardians to win the 2026 World Series | 2% | 2% | Polymarket | $5,556 |
| Houston Astros to win the 2026 World Series | 3% | 3% | Polymarket | $3,704 |
| Los Angeles Dodgers to win the 2026 World Series | 30% | 30% | Tied | $333 |
| Milwaukee Brewers to win the 2026 World Series | 14% | 12% | Polymarket | $833 |
| New York Yankees to win the 2026 World Series | 10% | 10% | Tied | $1,000 |
| Philadelphia Phillies to win the 2026 World Series | 6% | 6% | Kalshi | $1,667 |
| San Diego Padres to win the 2026 World Series | 2% | 1% | Polymarket | $9,091 |
| Seattle Mariners to win the 2026 World Series | 2% | 2% | Polymarket | $5,556 |
| Tampa Bay Rays to win the 2026 World Series | 8% | 9% | Kalshi | $1,250 |
| Texas Rangers to win the 2026 World Series | 1% | 1% | Tied | $10,000 |
| Toronto Blue Jays to win the 2026 World Series | 1% | 1% | Kalshi | $10,000 |
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The lowest valid price comes first. We don’t currently earn referral fees from the venues shown. Any future paid partnerships will be disclosed and will never change the price ranking.