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Ohio Senate Election Winner: Kalshi vs Polymarket odds

Sherrod Brown (D): 71¢ on Kalshi, 73¢ on Polymarket. Kalshi is 2¢ cheaper for "Yes".

Ohio Senate Election Winner

Kalshi vol $381KPolymarket 24h $166K
OutcomeKalshiPolymarketGap
Sherrod Brown (D)71¢73¢+2¢
Jon Husted (R)30¢28¢-2¢

Price history

69¢72¢75¢ 11-0211-02

Kalshi vs Polymarket, hourly,

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.

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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