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Matsuyama: Kosuke Ogura vs Hikaru Shiraishi: Kalshi vs Polymarket odds

Hikaru Shiraishi: 70¢ on Kalshi, 70¢ on Polymarket. Both exchanges price it the same.

Matsuyama: Kosuke Ogura vs Hikaru Shiraishi

Kalshi vol $659KPolymarket 24h $24K
OutcomeKalshiPolymarketGap
Hikaru Shiraishi70¢70¢0¢
Kosuke Ogura31¢31¢0¢

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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