Sports

Will Boston win the 2026 Pro Baseball American League Championship?

Heads up: Kalshi and Polymarket resolve this market 730 days apart — the price difference may reflect different time horizons rather than a genuine arbitrage opportunity.
9.5%volume-weighted implied probability
YES price range
K
P
0%50%100%
Kalshi Polymarket
7-day price history Kalshi Polymarket
Kalshi
10¢
bid · ask 10¢
24h vol $1,633
Trade on Kalshi
Best price
Polymarket
bid · ask 10¢
24h vol $335
Trade on Polymarket

Mapping notes

Event pair: 'MLB: 2026 American League Champion' ↔ 'American League Champion' (score 0.80, outcome match 0.50).

Kalshi ticker
KXMLBAL-26-BOS
Resolves 10/31/2028
Polymarket condition
0xc74f9b918c149b70
Resolves 11/1/2026
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