Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Toby Samuel

Platform comparison

Active sub-markets

Market context

Polymarket is pricing this contract at **100% YES**, so the market is treating Matteo Arnaldi as the overwhelmingly likely qualifier against Toby Samuel on the current order book. On Polymarket, the position settles in USDC on Polygon through conditional tokens, so the practical question for users is not the tennis headline but whether the match is completed in a way that the contract recognises as a clear Arnaldi win before the settlement window closes.

That near-certain price fits the usual pattern for a market where the scheduled player is either already through, the event has been played, or the outcome is effectively locked in by live scoring and exchange reaction. In similar tennis qualification markets, odds tend to converge very quickly once one side is confirmed to have advanced or when reputable live-score and tournament feeds show the match has started and reached a decisive state. Arnaldi’s ATP profile and head-to-head listing also point to him as the established tour-level player in the pairing, which helps explain why the contract can trade at a full yes when the broader event flow looks settled. [3][4]

The main catalysts for traders are not performance narratives but event mechanics: official draw updates, whether the match actually starts, and whether there is any postponement, walkover, retirement, or abandonment that could trigger the market’s 50-50 fallback rules. The LTA’s Eastbourne updates page shows Samuel already featured in qualifying results and scheduled for a tougher next step, which is the kind of tournament-level confirmation that typically keeps these contracts anchored once the draw is live. Recent live listings also show the fixture on Court 2 at Eastbourne, so any change to that schedule would be the key thing to watch before the resolution deadline. [10][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Toby Samuel on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket UK 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.

What does it cost to trade on Polymarket UK?

Zero. Polymarket UK 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.