Croatia Open, Qualification: Andrea Guerrieri vs Federico Agustin Gomez

Platform comparison

Market context

Andrea Guerrieri, the Italian clay-court specialist, faces Federico Agustin Gomez in the second round of qualifying at the Plava Laguna Croatia Open in Umag today, with the match originally set for 11:00 AM ET. On Polymarket, the contract for Guerrieri to advance currently trades at a 0% implied probability, a stark signal that the market believes the match either will not be played or that Gomez is the overwhelming favourite, despite Guerrieri’s recent momentum after winning the 2026 Garden Open Challenger title on clay [1].

Historically, such a 0% price in tennis qualification markets often precedes a cancellation or a walkover rather than a genuine competitive mismatch, as live trading usually corrects extreme mispricings once court-side updates confirm player availability. In comparable ATP 250 qualifying events on Polygon, contracts that hit 0% before play typically resolve to the 50-50 default if the match is abandoned, reflecting the on-chain conditional token mechanics that protect USDC liquidity from unresolved outcomes [1].

Traders should monitor the live score feeds for a start-time confirmation at Court 1, Umag, as any delay beyond the seven-day settlement window triggers the 50-50 resolution automatically [2]. The primary catalyst is the official ATP Tour match status, which will confirm if Guerrieri, who defeated Luca Nardi in the previous qualifying round, is physically present to contest the tie [3][5]. Until the ball is struck, the zero price suggests the market is pricing in a high risk of non-completion rather than a pure loss of form.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Croatia Open, Qualification: Andrea Guerrieri vs Federico Agustin Gomez across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

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

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.