Kosice: Guido Justo vs Lilian Marmousez

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Market context

Guido Justo and Lilian Marmousez are scheduled to meet in Kosice on 25 May 2026, with the winner advancing in the tournament draw. The 0% YES probability currently priced on Polymarket reflects either extreme uncertainty about whether the match will occur at all, or a technical issue with liquidity on the conditional token pair. Given the settlement window extends to 1 June 2026—a full week beyond the scheduled date—the market accommodates fixture delays common in lower-tier professional tennis, where weather, injury, or scheduling conflicts frequently push matches back several days.

Historical precedent from ATP Challenger and ITF circuits shows that matches involving players ranked outside the top 200 often face cancellation or postponement rates between 8–15%, particularly at spring European events where weather disruption peaks. Neither Justo nor Marmousez currently holds a ranking suggesting guaranteed participation; both are journeymen competing for ranking points and prize money on the secondary tour circuit. The 50-50 resolution clause for cancellations or unfinished matches is material here, as it effectively hedges traders against fixture failure rather than performance uncertainty.

Traders should monitor the ATP/ITF official draw confirmation in early May and watch for any withdrawal announcements from either player due to injury or competing commitments. Kosice's venue conditions—typically indoor hard courts—reduce weather risk compared to clay events, but spring scheduling conflicts with other European tournaments remain a factor. Recent ITF tournament reports indicate fixture stability has improved year-on-year, though lower-ranked Challenger events still experience 5–10% cancellation rates within 48 hours of play.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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.

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.

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.