Croatia Open, Qualification: Andrea Guerrieri vs Federico Agustin Gomez

Platform comparison

Market context

The Croatia Open qualification in Umag pits Andrea Guerrieri against Federico Agustin Gomez on clay, with the match originally set for 11:00am ET today. Polymarket prices the “Andrea Guerrieri advances” contract at 0% YES, implying the crowd expects Gomez to win or the match to be voided, despite betting odds favouring Guerrieri at 1.57 versus 2.22 for Gomez [1][6]. This stark divergence between on-chain pricing and traditional bookmaker odds is the defining feature of the market today.

Historically, similar 0% pricing on Polymarket for tennis qualifiers has preceded either a late cancellation or a heavy favourite walking over a weaker opponent, but rarely a complete misread of form. In past ATP qualification markets where odds favoured one player by 0.65+ in decimal terms, the 0% token usually resolved to the underdog only when the favourite withdrew pre-match, triggering the 50-50 settlement clause [2][5]. The current pricing suggests traders are betting on a withdrawal or delay rather than Gomez winning outright.

Traders should monitor the official Umag ATP draw updates and any player injury reports from the tournament’s media centre, as a late withdrawal by Guerrieri would instantly flip the settlement to 50-50. Tennis Tonic’s pre-match analysis still picks Guerrieri to win in three sets, but the on-chain price implies the market is pricing in a non-play scenario [1]. Watch for announcements on the tournament’s official site or social channels before the 15:00 UTC settlement window closes on 19 July 2026, as any delay beyond seven days without a winner also triggers the 50-50 outcome [1][9].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Croatia Open, Qualification: Andrea Guerrieri vs Federico Agustin Gomez across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Scam?. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Polymarket Scam? 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.