Roland Garros ATP: Marin Cilic vs Moise Kouame

Platform comparison

Active sub-markets

Market context

Marin Cilic, the 2014 US Open champion and former world number three, faces Moise Kouame, a French qualifier ranked outside the top 200, in the opening round of Roland Garros on 24 May 2026. Cilic, now 37, has competed sporadically in recent seasons but retains wildcards at Grand Slams owing to his ranking history and tournament pedigree. Kouame, in his mid-twenties, has built a modest career on the Challenger circuit and French domestic competitions, with limited exposure to top-50 opponents on clay.

The 0% implied probability reflects the substantial gap in experience and seeding status. Cilic has won 18 ATP titles and reached multiple Grand Slam finals; Kouame has never qualified for a main-draw Grand Slam prior to this event. Historical precedent suggests that whilst upsets occur at Roland Garros—particularly when older players face younger, hungrier opponents—a qualifier must typically demonstrate recent form at the highest level to threaten a seeded veteran. Cilic's clay-court record, though inconsistent in recent years, includes a 2018 French Open semi-final appearance.

Traders should monitor Cilic's fitness status and any late withdrawals in the days preceding the match, as his participation in warm-up tournaments beforehand will signal his physical condition. Kouame's draw luck and whether he faces Cilic in optimal circumstances—such as if Cilic has played multiple matches already—would represent the primary catalyst for meaningful probability shift. The settlement window extends to 31 May, allowing seven days beyond the scheduled date for completion or rescheduling.

Methodology

We track Roland Garros ATP: Marin Cilic vs Moise Kouame 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

Where can I trade this market with the lowest fees?

On Sport Prediction, 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.

Is this market available outside the US?

Sport 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 does it cost to trade on Sport Prediction?

Zero. Sport Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.