Lexus Eastbourne Open: Caty McNally vs Petra Marcinko

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Active sub-markets

Market context

The underlying event is the scheduled grass-court tennis match between Caty McNally and Petra Marcinko at the Lexus Eastbourne Open, set for 11:30 AM ET on 25 June 2026 at Devonshire Park in Eastbourne, Great Britain. The market resolves to McNally if she advances, to Marcinko if she does, and to a 50-50 split if the match is canceled, tied, or delayed beyond seven days without a winner.

Historical precedents in prediction markets show that 100% crowd-implied probabilities often reflect extreme certainty but can mask latent risks such as player injury, withdrawal, or administrative cancellation. Comparable cases from WTA tournaments, including last year’s Eastbourne Open where a top-seeded player withdrew pre-match due to a minor ankle issue, demonstrate that even near-certain outcomes require scrutiny of real-time dependencies. These cases frame the current probability not as a guarantee, but as a snapshot contingent on match completion and player availability[3][6].

Traders should monitor official WTA and ATP daily schedules for any last-minute draw changes, player health announcements, or weather-related delays, as grass-court conditions in Eastbourne are sensitive to rain. A recent WTA update confirms the tournament runs from 22 to 27 June with no singles draw listed yet, underscoring the need to track live draw releases and lineup confirmations[3]. Regulatory accessibility is shaped by German GlüStV provisions allowing no-KYC participation up to €1,500, and US CFTC reach that permits similar thresholds for non-registered platforms, meaning this market remains accessible to traders without identity verification below that limit, provided the platform complies with local KYC exemptions.

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). 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

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?

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.

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.