All comparisons

Rolex Paris Masters: Tommy Paul vs Holger Rune: Kalshi vs Polymarket odds

Tommy Paul: 67¢ on Kalshi, 67¢ on Polymarket. Both exchanges price it the same.

Rolex Paris Masters: Tommy Paul vs Holger Rune

Kalshi vol $62KPolymarket 24h $18K
OutcomeKalshiPolymarketGap
Tommy Paul67¢67¢0¢
Holger Rune33¢34¢+1¢

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.

Related comparisons