Roland Garros WTA: Marta Kostyuk vs Mirra Andreeva

Platform comparison

Active sub-markets

Market context

Marta Kostyuk and Mirra Andreeva are scheduled to meet in the Roland Garros women's draw on 4 June 2026. The match carries a 55% crowd-implied probability favouring Kostyuk's advancement, reflecting modest confidence in the Ukrainian player despite the encounter occurring on clay—a surface where both competitors have shown variable form. The settlement window closes on 11 June, allowing a seven-day buffer for rescheduling or completion if weather or injury interruptions occur during the tournament fortnight.

Kostyuk's recent trajectory on clay has been inconsistent; whilst she reached the quarterfinals at Rome in 2025, she struggled with early exits at smaller WTA events on the surface. Andreeva, by contrast, demonstrated breakthrough potential at the Australian Open earlier in 2026 but has yet to establish consistent results on European clay. Historical precedent suggests that when unseeded or lower-ranked players meet at Roland Garros, the player with superior clay-court win-loss ratios over the preceding twelve months typically advances in roughly 60–65% of cases. Current rankings and recent tournament results will be critical inputs for algorithmic evaluation of this 55% baseline.

Traders monitoring this match should track official draw confirmations and injury updates through the WTA and Roland Garros official channels in the week preceding 4 June. Surface-specific performance metrics—break-point conversion rates, first-serve percentages on clay, and head-to-head records if applicable—will inform conditional order placement. Weather forecasts for Paris during the scheduled date may also trigger volatility, particularly if rain delays push the match beyond the initial window and force rescheduling logic into play.

Methodology

We track Roland Garros WTA: Marta Kostyuk vs Mirra Andreeva 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

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

Is this market available outside the US?

Polymarket App UK 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 does it cost to trade on Polymarket App UK?

Zero. Polymarket App UK 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, Polymarket App UK triggers a quick verification flow that finishes in minutes.