Grodzisk Mazowiecki: Viktor Durasovic vs Andrea Guerrieri

Platform comparison

Market context

Andrea Guerrieri’s Challenger meeting with Viktor Durasovic in Grodzisk Mazowiecki is being priced as a clear Guerrieri edge across the market stack, but not at the absolute extremes implied by a 0% YES crowd price. Kalshi is showing Guerrieri around 73% and Durasovic around 27%, while bookmaker-style pricing on BetVictor is roughly Guerrieri -333 and Durasovic +210, a spread that translates to a roughly three-in-four favourite once vig is stripped out.[17][12] That makes the current contract look directionally aligned with the sportsbook consensus, but softer than a binary “lock” market would suggest.[17][12]

The historical frame also points towards Guerrieri as the more established player: TennisTemple lists him at ATP 213 live, versus Durasovic at ATP 454 live, and its pre-match model showed a 100% edge to Guerrieri on the day of play.[3] Tennis Tonic likewise named Guerrieri the pick and quoted early odds of 1.35 for Guerrieri against 2.88 for Durasovic, reinforcing the same hierarchy seen in the market pricing.[11] That said, the 0% YES crowd-implied probability on this contract is materially more extreme than the implied probabilities from those other venues, which suggests the market may be reflecting contract mechanics, liquidity, or a stale price rather than a pure view on match quality.[17][12][11]

For traders, the key catalysts are straightforward: whether the match is officially started, completed, postponed, or scrapped. Live listings from Flashscore and 365Scores show the fixture on 5 August, with start times around 09:00–09:30 UTC and live score pages already active, which matters because any walkover, retirement, or delay beyond the settlement window can push the contract into its 50-50 fallback rules.[1][2][17] If the schedule slips or one player withdraws, the real driver becomes the tournament’s official update rather than pre-match form, since the market settles on advancement, not just whether a ball is struck.[17]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Grodzisk Mazowiecki: Viktor Durasovic vs Andrea Guerrieri 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

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

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 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.

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 Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.