Cincinnati Open: Madison Keys vs Xiyu Wang

Platform comparison

Market context

Madison Keys and Xiyu Wang were due to meet in Cincinnati on 19 August, with live listings showing the match tied to the round of 16 and bookmakers/model estimates clustering around Keys as a clear favourite. Wang progressed after Elina Svitolina withdrew injured, while Keys arrived off a straight-sets win over Katerina Siniakova, so the market’s 89% YES price lines up with a draw in which the American had already cleared a stronger-looking path on paper.

The historical frame is straightforward: Keys won the pair’s only previous meeting, and it came on grass rather than hard court, which limits direct relevance to Cincinnati. Wang had also struggled for results at this event before, which helps explain why the market has not treated this as a near coin-flip despite the vagaries of women’s hard-court tennis and the possibility of momentum shifting quickly within a best-of-three match.

The main catalysts now are scheduling and whether the contest actually takes place before the settlement window closes on 26 August. If the match starts, the market should swing heavily towards a normal resolution; if it is delayed, suspended, or ends via retirement after one player has clearly advanced, that still matters under the rules. A late withdrawal, a weather interruption, or a revised order of play would be the key developments to watch.

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Methodology

This page reviews Cincinnati Open: Madison Keys vs Xiyu Wang across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

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Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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