Roland Garros WTA: Emma Raducanu vs Solana Sierra

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Active sub-markets

Market context

Emma Raducanu faces Solana Sierra in the opening rounds of Roland Garros in May 2026. The match is scheduled for 24 May at 05:00 ET, with settlement occurring by 31 May. On Polymarket, conditional tokens for this fixture currently trade at 0% YES, reflecting either extreme confidence in Raducanu's victory or minimal liquidity in the pairing. The USDC-denominated contract on Polygon settles binary: Raducanu advances or Sierra advances, with a 50-50 resolution only if the match is cancelled, delayed beyond seven days without completion, or abandoned mid-play.

Raducanu's recent trajectory provides essential context. After returning to competitive tennis following wrist surgery, she has demonstrated inconsistent form across 2025, with early-round exits at several majors offset by occasional deep runs. Sierra, ranked considerably lower, has limited Grand Slam experience and typically features in qualifying draws. Historical precedent suggests that when top-100 players face unranked or low-ranked opponents at Roland Garros, the favourite advances in roughly 85–90% of cases, though upsets do occur, particularly on clay where movement patterns shift. The 0% pricing likely reflects algorithmic confidence in Raducanu rather than genuine zero-probability assessment.

Traders should monitor Raducanu's fitness status and clay-court preparation in the weeks preceding the match. Any withdrawal announcement or injury update would trigger immediate resolution mechanics. Weather conditions at Roland Garros—particularly rain delays—could extend the settlement window, though the seven-day buffer provides substantial margin. Sierra's recent tournament results and ranking movements will indicate whether she has gained seeding or wild-card status, which would affect draw positioning and match scheduling.

Methodology

We track Roland Garros WTA: Emma Raducanu vs Solana Sierra on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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 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.

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.