Pronóstico: Lexus Eastbourne Open: Caty McNally vs Petra Marcinko

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Market context

The Lexus Eastbourne Open match between Caty McNally and Petra Marcinko, originally set for 11:30 AM ET on 25 June 2026, is the real-world event underpinning this prediction contract. Today, Polymarket prices this agreement at 100% YES for Caty McNally advancing, reflecting a crowd-implied certainty that she will win the tie. This pricing sits on the Polygon blockchain, settled in USDC, where conditional tokens lock the outcome based on the official WTA result.

Historically, 100% pricing in tennis markets often precedes a walkover or a pre-match retirement, as seen in prior WTA 250 events where one player withdrew before the first ball. In such cases, the conditional token resolves instantly to the advancing player, bypassing the need for on-court play. Traders should note that if the match is cancelled or delayed beyond seven days without a winner, the token defaults to a 50-50 split, a rare but documented mechanic in conditional token systems.

Key catalysts include the official WTA draw update and any injury announcements posted by the LTA or WTA before the settlement window closes on 2 July 2026. The tournament runs from 22 to 27 June on grass at Devonshire Park, and any schedule shift could alter the resolution path. For the latest on player lineups and match times, fans should consult the official WTA tournament overview, which confirms the singles draw size and surface details [3]. Traders must monitor these updates closely, as a withdrawal could trigger an immediate resolution to McNally without a match being played.

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

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 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.