Roland Garros, Qualification WTA: Polina Kudermetova vs Xiyu Wang

Platform comparison

Active sub-markets

Market context

Polina Kudermetova and Xiyu Wang were due to meet in Roland Garros qualifying on 22 May, with the market now sitting at 0% YES despite the fixture being listed by the WTA and live-score services. In a normal tennis market, that kind of price would imply either a stale contract, a venue-specific settlement issue, or that traders expect the match to be voided rather than played to a completed result. H2H records are thin: Tennis Ratio shows they have met once before, with Kudermetova leading 1-0, so there is little historical basis for a one-sided blowout either way.

For context, qualifying matches at Grand Slams are often more sensitive to schedule changes than main-draw ties, especially when rain or court backlog pushes start times around. Flashscore and SofaScore both list the match for 22 May, while the WTA official tournament page also has the pairing, so the key catalyst is simply whether it is completed inside the contract’s settlement window. If the match is postponed beyond seven days without a winner, the market resolves 50-50, which matters more than pre-match form in a contract currently implying no YES outcome.

On-chain, the contract settles in USDC, so the main practical risk is not tennis volatility but whether the oracle and resolution mechanics see a clean final result before expiry. For traders tying this to broader crypto conditions, BTC and ETH spot risk sentiment may influence liquidity and spreads, but not the tennis outcome itself. Recent market watchers have also been focused on whether funding and whale flows are affecting risk appetite across prediction markets more generally, though no direct on-chain flow signal appears to change the underlying match settlement logic here.

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Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.