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Chennai Open: Robin Montgomery vs Jeline Vandromme: Kalshi vs Polymarket odds

Robin Montgomery: 61¢ on Kalshi, 54¢ on Polymarket. Polymarket is 7¢ cheaper for "Yes".

Chennai Open: Robin Montgomery vs Jeline Vandromme

Kalshi vol $146KPolymarket 24h $47K
OutcomeKalshiPolymarketGap
Robin Montgomery61¢54¢-7¢
Jeline Vandromme40¢47¢+7¢

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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