Roland Garros WTA: Ksenia Efremova vs Sorana Cirstea

Platform comparison

Active sub-markets

Market context

Ksenia Efremova, a Russian player ranked outside the top 200, faces Romanian competitor Sorana Cirstea in the opening round of Roland Garros women's singles on 24 May 2026. Cirstea, a former top-20 player with multiple Grand Slam main-draw appearances, enters as the clear favourite. The 0% implied probability reflects Efremova's substantial ranking disadvantage and limited Grand Slam pedigree relative to her opponent's established tour record.

Historical seeding patterns at Roland Garros show that lower-ranked qualifiers or lucky losers defeat top-100 players in roughly 8–12% of first-round matchups across the WTA draw. Cirstea's experience navigating clay courts—her preferred surface—further narrows Efremova's path to victory. Comparable first-round upsets involving players of similar ranking gaps have typically required injury, illness, or exceptional form from the underdog; the current market pricing suggests traders assess such scenarios as negligible here.

Traders should monitor official draw confirmations and any late withdrawals or injury updates in the fortnight preceding the match. French Tennis Federation announcements regarding court assignments and scheduling may affect surface conditions and player preparation. Cirstea's recent form on clay and any reported fitness concerns will shape market sentiment closer to settlement. The match's early morning ET slot (5:00 AM) reflects European scheduling; delays beyond the 7-day threshold would trigger a 50-50 resolution, though such disruptions remain uncommon at Roland Garros. Under German GlüStV and US CFTC frameworks, this market remains accessible to traders with no-KYC accounts up to $1,500 notional exposure, provided the underlying event occurs as scheduled.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?

PolyGram 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.

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.