Roland Garros WTA: Emma Raducanu vs Solana Sierra

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Market context

Emma Raducanu is scheduled to face Solana Sierra in the opening round of Roland Garros on 24 May 2026. The 0% implied probability reflects the market's current assessment that this match will not occur as scheduled, though the settlement window extends to 31 May, allowing a seven-day buffer for rescheduling before resolution triggers the 50-50 tie clause.

Raducanu's participation in major tournaments has been constrained by recurring soft-tissue injuries since her 2021 US Open breakthrough. Her clay-court record remains limited, with sporadic appearances at Roland Garros yielding early exits in 2022 and 2023. Sierra, ranked outside the top 100, carries minimal expectation as a qualifier or lucky loser. Historical precedent suggests that when markets price opening-round matches at zero probability, the primary driver is typically player withdrawal rather than administrative cancellation—Raducanu's injury history makes her fitness status the critical variable.

Traders should monitor official WTA and Roland Garros injury bulletins through the week of 19 May, as late withdrawals are typically announced 48–72 hours before scheduled play. Any confirmation of Raducanu's entry into the draw and attendance at the mandatory players' meeting would materially shift the probability. Court assignments and weather delays, whilst possible, are less likely to push the match beyond the seven-day grace period unless compounded by player injury during the tournament. The settlement window's design suggests the market expects clarity well before 31 May.

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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, 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.

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.

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.

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.