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World Series on Kalshi
If Washington wins the 2027 Pro Baseball Championship, then the market resolves to Yes.
Settles on: ESPN, Fox Sports, AP.
Market says (typical open contract)
3%
Median YES price across 30 open contracts, 10 Nov 2026 09:57 UTC.
Real-world odds
—
No independent base rate yet. Until we connect one (sportsbook consensus, forecasts, the score), the market's own price is the best public forecast, and the fee sits on top of it.
Luck needed meter
6% 😈
All but decided, says the market. The remaining cents are the price of the rare surprise, and the fee comes off them first.
The cover charge
| If you buy at | Fee per contract | On $50 | Win rate to break even |
|---|---|---|---|
| 3¢ (now) | 0.2¢ | $3.40 | 3.2% |
| 30¢ | 1.5¢ | $2.45 | 31.5% |
| 50¢ | 1.8¢ | $1.75 | 51.7% |
| 70¢ | 1.5¢ | $1.05 | 71.5% |
| 90¢ | 0.6¢ | $0.35 | 90.6% |
Makers also pay a smaller fee on this series. Formula: 7% × contracts × price × (1 − price), rounded up, on orders that take liquidity. Break-even assumes you hold to settlement; trading out early pays the fee twice.
Open contracts right now
| Contract | YES price | Implied | Fee at this price | Real-world odds | Luck needed | Volume | Closes |
|---|---|---|---|---|---|---|---|
| Will Milwaukee win the 2027 Pro Baseball Championship? · Milwaukee | 11¢ | 11% | 0.7¢ | — | 21% | 105,982 | Oct 31, 04:00 UTC |
| Will Los Angeles D win the 2027 Pro Baseball Championship? · Los Angeles D | 21¢ | 21% | 1.2¢ | — | 42% | 39,015 | Oct 31, 04:00 UTC |
| Will San Francisco win the 2027 Pro Baseball Championship? · San Francisco | 1¢ | 1% | 0.1¢ | — | 3% | 27,532 | Oct 31, 04:00 UTC |
| Will Cincinnati win the 2027 Pro Baseball Championship? · Cincinnati | 1¢ | 1% | 0.1¢ | — | 3% | 20,457 | Oct 31, 04:00 UTC |
| Will San Diego win the 2027 Pro Baseball Championship? · San Diego | 6¢ | 6% | 0.4¢ | — | 11% | 14,944 | Oct 31, 04:00 UTC |
| Will Seattle win the 2027 Pro Baseball Championship? · Seattle | 4¢ | 4% | 0.3¢ | — | 9% | 9,911 | Oct 31, 04:00 UTC |
| Will Chicago WS win the 2027 Pro Baseball Championship? · Chicago WS | 3¢ | 3% | 0.2¢ | — | 7% | 8,580 | Oct 31, 04:00 UTC |
| Will New York Y win the 2027 Pro Baseball Championship? · New York Y | 9¢ | 9% | 0.6¢ | — | 18% | 8,489 | Oct 31, 04:00 UTC |
| Will Cleveland win the 2027 Pro Baseball Championship? · Cleveland | 5¢ | 5% | 0.3¢ | — | 10% | 7,931 | Oct 31, 04:00 UTC |
| Will New York M win the 2027 Pro Baseball Championship? · New York M | 5¢ | 5% | 0.4¢ | — | 11% | 7,045 | Oct 31, 04:00 UTC |
| Will St. Louis win the 2027 Pro Baseball Championship? · St. Louis | 1¢ | 1% | 0.1¢ | — | 2% | 6,625 | Oct 31, 04:00 UTC |
| Will Tampa Bay win the 2027 Pro Baseball Championship? · Tampa Bay | 5¢ | 5% | 0.3¢ | — | 10% | 5,498 | Oct 31, 04:00 UTC |
| Will Los Angeles A win the 2027 Pro Baseball Championship? · Los Angeles A | 1¢ | 1% | 0.1¢ | — | 2% | 4,614 | Oct 31, 04:00 UTC |
| Will Atlanta win the 2027 Pro Baseball Championship? · Atlanta | 5¢ | 5% | 0.4¢ | — | 11% | 3,738 | Oct 31, 04:00 UTC |
| Will Houston win the 2027 Pro Baseball Championship? · Houston | 2¢ | 2% | 0.1¢ | — | 3% | 3,419 | Oct 31, 04:00 UTC |
| Will Boston win the 2027 Pro Baseball Championship? · Boston | 5¢ | 5% | 0.3¢ | — | 9% | 3,187 | Oct 31, 04:00 UTC |
| Will Chicago C win the 2027 Pro Baseball Championship? · Chicago C | 4¢ | 4% | 0.2¢ | — | 7% | 2,275 | Oct 31, 04:00 UTC |
| Will Detroit win the 2027 Pro Baseball Championship? · Detroit | 3¢ | 3% | 0.2¢ | — | 7% | 1,793 | Oct 31, 04:00 UTC |
| Will Toronto win the 2027 Pro Baseball Championship? · Toronto | 2¢ | 2% | 0.1¢ | — | 3% | 809 | Oct 31, 04:00 UTC |
| Will Miami win the 2027 Pro Baseball Championship? · Miami | 1¢ | 1% | 0.1¢ | — | 3% | 744 | Oct 31, 04:00 UTC |
| Will Baltimore win the 2027 Pro Baseball Championship? · Baltimore | 3¢ | 3% | 0.2¢ | — | 6% | 462 | Oct 31, 04:00 UTC |
| Will Washington win the 2027 Pro Baseball Championship? · Washington | 1¢ | 1% | 0.1¢ | — | 2% | 384 | Oct 31, 04:00 UTC |
| Will Texas win the 2027 Pro Baseball Championship? · Texas | 2¢ | 2% | 0.2¢ | — | 4% | 372 | Oct 31, 04:00 UTC |
| Will Philadelphia win the 2027 Pro Baseball Championship? · Philadelphia | 3¢ | 3% | 0.2¢ | — | 7% | 354 | Oct 31, 04:00 UTC |
| Will Arizona win the 2027 Pro Baseball Championship? · Arizona | 2¢ | 2% | 0.2¢ | — | 4% | 323 | Oct 31, 04:00 UTC |
| Will A's win the 2027 Pro Baseball Championship? · A's | 1¢ | 1% | 0.1¢ | — | 2% | 176 | Oct 31, 04:00 UTC |
| Will Colorado win the 2027 Pro Baseball Championship? · Colorado | 1¢ | 1% | 0.1¢ | — | 2% | 38 | Oct 31, 04:00 UTC |
| Will Pittsburgh win the 2027 Pro Baseball Championship? · Pittsburgh | 2¢ | 2% | 0.1¢ | — | 4% | 13 | Oct 31, 04:00 UTC |
| Will Kansas City win the 2027 Pro Baseball Championship? · Kansas City | 1¢ | 1% | 0.1¢ | — | 2% | 6 | Oct 31, 04:00 UTC |
| Will Minnesota win the 2027 Pro Baseball Championship? · Minnesota | 1¢ | 1% | 0.1¢ | — | 3% | 2 | Oct 31, 04:00 UTC |
Who actually wins this market
- Whoever posts the resting orders and collects the spread.
- The venue, on every fee.
- Not, on average, the person clicking buy because the chart is going their way. That was us.
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