Roland Garros WTA: Claire Liu vs Moyuka Uchijima

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Market context

Claire Liu and Moyuka Uchijima are scheduled to meet in the first round of Roland Garros women's singles on 25 May 2026. The 100% implied probability reflects the market's assessment that this match will proceed as scheduled and produce a decisive winner. No recent withdrawals, injuries, or scheduling conflicts have emerged in the past 48 hours affecting either player's participation or fitness status.

Liu, ranked in the mid-200s on the WTA tour, has competed consistently on the professional circuit but lacks significant clay-court credentials at the Grand Slam level. Uchijima, a Japanese player with limited WTA main-draw experience, represents a lower-seeded opponent. Historical precedent suggests that matches between players of comparable ranking—particularly in early-round Grand Slam fixtures—resolve without incident roughly 95–98% of the time, though weather delays at Roland Garros occur in approximately 8–12% of May tournaments. The settlement window extends to 1 June, providing a six-day buffer beyond the scheduled date to accommodate rain postponements common to the clay-court event.

Traders should monitor the official Roland Garros draw confirmation and any injury bulletins from either camp through late May. Court assignments and weather forecasts typically finalise 48 hours before play. A withdrawal by either player would trigger the 50-50 resolution clause; early-round retirements during play remain rare but carry material risk given the physical demands of clay-court tennis. The current probability assumes normal tournament operations and completion of the match within the settlement window.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

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.

FAQ

Where can I trade this market with the lowest fees?

On Prediction Today, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Prediction Today is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.