Istanbul 2: Petr Bar Biryukov vs Paul Inchauspe

Platform comparison

Market context

Petr Bar Biryukov is scheduled to face Paul Inchauspe in the Istanbul Challenger round of 32, but the market is already pricing it as a near-certainty that no standard result will be recorded, with the crowd-implied probability at 0% YES. Live scoring and match listings place the contest on 4 August, with Biryukov ranked roughly ATP 285 on current live feeds and Inchauspe around ATP 600, which is the sort of ranking gap that would normally point to a clear favourite rather than a dead market[1][2][4].

That makes this contract easier to read by comparison with sportsbook and data-site signals than by head-to-head history. 365Scores’ pre-match wording has leaned towards Inchauspe on recent form, while Flashscore has listed Biryukov at very short odds, and TennisTemple shows the match as a live fixture with both players still at zero in the scoreline[3][4][1]. In other words, the prediction market’s 0% YES is not a conventional win-price view; it usually reflects a contract-structure issue, a voided or deferred fixture, or a market that has effectively detached from the underlying tennis price.

The main catalyst is whether the match is actually played and completed before the settlement deadline, because the market resolves 50-50 if the contest is cancelled, tied, or delayed more than seven days without a winner. The schedule itself has already shifted across feeds, with some listings showing 10:00 UTC on 4 August and others showing different local renderings, so traders should watch for official order-of-play updates, court assignments, and any walkover or withdrawal notices from the Istanbul event itself[2][3][8]. If the match starts but is later abandoned, the settlement rules become decisive, not the pre-match favourite line.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets UK. 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.

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.