All comparisons

Rolex Paris Masters: Cameron Norrie vs Matteo Arnaldi: Kalshi vs Polymarket odds

Cameron Norrie: 89¢ on Kalshi, 82¢ on Polymarket. Polymarket is 7¢ cheaper for "Yes".

Rolex Paris Masters: Cameron Norrie vs Matteo Arnaldi

Kalshi vol $38KPolymarket 24h $57K
OutcomeKalshiPolymarketGap
Cameron Norrie89¢82¢-7¢
Matteo Arnaldi12¢19¢+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.

Related comparisons