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M15 Hua Hin: Oscar Brown vs James Van Herzeele: Kalshi vs Polymarket odds

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Oscar Brown: 67¢ on Kalshi, 72¢ on Polymarket. Kalshi is 5¢ cheaper for "Yes".

M15 Hua Hin: Oscar Brown vs James Van Herzeele

Kalshi 24h $549KPolymarket 24h $6K2 outcomes
OutcomeKalshiPolymarketGap
Oscar Brown67¢72¢+5¢
James Van Herzeele33¢28¢-5¢

Why the same contract has two prices

Kalshi and Polymarket run separate order books with different traders, so prices drift apart. Fees differ, and liquidity differs by market. Check each exchange's resolution rules before treating a gap as free money: small wording differences can mean the contracts are not identical.

Before you trade

Use the fee and break-even calculator to see your all-in cost, or the gap calculator to check whether this price difference survives fees. Related reading: why the price you see isn't your fill, how markets resolve, and how often the two exchanges disagree.

Where can you trade it?

Kalshi and Polymarket US availability depends on your state, and sports contracts are blocked in some states. Check your state.

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