Roland Garros WTA: Marta Kostyuk vs Mirra Andreeva

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Market context

Marta Kostyuk and Mirra Andreeva are scheduled to meet in the Roland Garros women's draw on 4 June 2026. The market currently implies a 56% probability that Kostyuk advances, reflecting modest favouritism despite both players being capable of deep runs on clay. The settlement window closes on 11 June, allowing a seven-day buffer for completion or rescheduling before resolution triggers.

Kostyuk's record against top-20 opponents on clay has improved markedly since 2024, whilst Andreeva's breakthrough performances at major tournaments have come primarily on hard courts. Head-to-head history between them remains limited, with their most recent encounter occurring in 2023 on a hard court surface where Andreeva prevailed. Clay-court form divergence is the primary historical lens: Kostyuk has posted consistent quarterfinal-or-better results at Roland Garros in recent seasons, whereas Andreeva's clay-court trajectory remains less established at this venue specifically.

Traders should monitor draw positioning and seeding announcements, typically released in late May, which affect match scheduling and fatigue factors. Recent form leading into the tournament—particularly results from the warm-up events in May—will signal confidence levels for both players. Weather disruptions at Roland Garros frequently compress the schedule, potentially favouring players with deeper reserves of stamina. Any injury reports or withdrawal announcements in the fortnight before 4 June would materially shift the probability, as would late-stage ranking shifts that might alter seeding and thus the likelihood of this matchup occurring at all.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Roland Garros WTA: Marta Kostyuk vs Mirra Andreeva plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

Is this market available outside the US?

Trump Prediction 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 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.

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.