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WTA Finals, Group B: Mirra Andreeva vs Karolina Muchova: Kalshi vs Polymarket odds

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Mirra Andreeva: 73¢ on Kalshi, 71¢ on Polymarket. Polymarket is 2¢ cheaper for "Yes".

WTA Finals, Group B: Mirra Andreeva vs Karolina Muchova

Kalshi 24h $21KPolymarket 24h $9K2 outcomes
OutcomeKalshiPolymarketGap
Mirra Andreeva73¢71¢-2¢
Karolina Muchova29¢30¢+1¢

Price history

69¢72¢75¢ 11-1311-13

Kalshi vs Polymarket, hourly, 4 observations

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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