Geneva Open: Arthur Rinderknech vs Alexander Bublik

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Active sub-markets

Market context

Arthur Rinderknech and Alexander Bublik are due to meet in Geneva at the ATP 250 event, with the market currently pricing a completed Bublik win at 100% yes. That unanimity is less a statement of certainty than a sign the contract is already functionally settled by the live event structure: if the match is played and a winner is declared, resolution follows the court result; if it is cancelled, left unfinished beyond the seven-day window, or otherwise voided, the market reverts to 50-50. Similar tennis head-to-head markets at this stage tend to track the start order and draw status more than form narratives, because one late withdrawal or weather delay can override a strong pre-match consensus.

For traders, the main catalysts are the official order of play, any medical or withdrawal bulletin, and whether the quarter-final actually starts within the settlement window ending 2026-05-28T17:30:00Z. Recent listings from Geneva and live score services indicate the fixture was scheduled around 21 May, but tournament timing can still shift if earlier matches run long or conditions interrupt play. On access, German GlüStV rules can make some lottery-style and betting-adjacent products harder to reach from Germany, while US CFTC jurisdiction may matter for American users if the venue is treated as a derivatives-style event contract. A no-KYC tier up to $1,500 generally means smaller accounts can trade without full identity checks, which improves access for this market, but higher volumes will still trigger verification and any platform-specific residency controls.

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Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.