Geneva Open: Arthur Rinderknech vs Alexander Bublik

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Active sub-markets

Market context

Polymarket has this Geneva Open match priced as a full 100% YES on Arthur Rinderknech versus Alexander Bublik, so the contract is effectively trading as if the Frenchman has already advanced. On Polymarket, each side is settled in USDC on Polygon through conditional tokens, so the practical question for holders is not the pre-match noise but whether the event is officially completed, delayed, or washed out into the market’s 50-50 fallback rules. With the settlement window running to 28 May, the key issue is whether the fixture is played and decided inside that period, rather than who was favoured before serve.

The historical frame is straightforward: Bublik has had the upper hand in the head-to-head, with a straight-sets win over Rinderknech in Paris in 2022, and ATP and tournament listings both point to this Geneva quarter-final being a clay-court meeting. That matters because clay can narrow the gap when one player leans on serve, but it also tends to reward the better returner and the more patient baseliner. For a market sitting at 100% YES, traders should read the price as a statement about event completion risk, not just match quality, because the payout only flips away from the current side if the match is not played, ends level, or slips beyond the seven-day settlement rule.

The main catalysts are operational: whether the Geneva draw stays intact, whether the quarter-final is moved by rain or scheduling congestion, and whether either player withdraws before first ball. TennisLive, SofaScore and the tournament’s own head-to-head pages all show the match listed for 21 May, which reduces uncertainty but does not remove it entirely until the umpire’s chair is occupied and play begins. If the fixture starts normally, the contract should track the in-play progression on chain only after the underlying result is official; if it does not start, the market remains exposed to the cancellation and delay language rather than the scoreboard.

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Methodology

This page reviews Geneva Open: Arthur Rinderknech vs Alexander Bublik across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 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.