Pozoblanco: Yi Zhou vs Stefan Kozlov

Platform comparison

Market context

The Yi Zhou versus Stefan Kozlov match at the Pozoblanco Challenger has already concluded, with Zhou advancing to the next round, which explains the market’s current 100% YES probability for a Zhou resolution. The contest took place on 14 July 2026 at 16:10 UTC on Pista 3 in Spain, finishing before the settlement window’s 2026 deadline, leaving no uncertainty about the outcome [1][4].

Historically, prediction markets for completed tennis matches that resolve before the settlement deadline settle immediately once the result is confirmed, with no further volatility. Comparable cases from ATP Challenger events show that when a match finishes within the settlement window and one player advances, the market locks at the implied probability of the winner, often reaching 100% within hours of the final point [5][6].

Traders should monitor the official Pozoblanco tournament page for any post-match administrative updates, though none are expected given the match’s completion. The next relevant catalyst is Zhou’s scheduled appearance in the Round of 16, with no dependencies on Kozlov’s status beyond the confirmed retirement or default that ended their contest [2][3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pozoblanco: Yi Zhou vs Stefan Kozlov 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

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today 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.