Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi

Platform comparison

Market context

Polymarket is pricing Dusan Lajovic vs Benjamin Bonzi at **100% YES** for the Lajovic side, which effectively treats the contract as fully assigned to that outcome on Polygon with settlement in USDC through conditional tokens. On the screen, that means traders are not paying for a 50-50 contest; they are mainly holding exposure to whether the match is completed in a way that preserves the current Lajovic resolution logic, rather than to the abstract question of who is the better player.

The comparison with earlier market handling is important because qualifying matches can move from live play to suspension, postponement or partial completion very quickly. Tennisexplorer recorded the Cincinnati qualifying meeting as interrupted after Lajovic led 2-6, 7-6(2), 0-0, while other live score listings also showed the match as suspended/postponed, so a trader has to separate on-court state from contract state. That matters here because the market rules say a cancellation, tie, or delay beyond seven days without a winner would settle 50-50, while an unfinished match after it starts is also designed to avoid a straightforward player win payout.

The immediate catalysts are operational rather than speculative: tournament scheduling updates, a confirmed resumption time, any retirement or walkover notice, and whether Cincinnati’s qualifying draw is kept intact within the settlement window. The key dependency is the ATP’s official match status, because that determines whether the contract resolves to one player or falls back to the 50-50 branch. If play resumes and ends cleanly, the market should follow the completed result; if organisers push it out past the deadline or formally void the contest, the on-chain settlement changes completely.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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'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.