Wimbledon ATP: Quentin Halys vs Marcos Giron

Platform comparison

Market context

Marcos Giron has already defeated Quentin Halys in their Round of 64 match at the 2026 Wimbledon Championships, with the final score reading 7-6, 7-6, 6-3[1][8]. This outcome means the prediction market titled "Wimbledon ATP: Quentin Halys vs Marcos Giron" has effectively settled to "Marcos Giron" before the settlement window closes, rendering the current 0% crowd-implied probability for Halys a factual reflection of the completed event rather than a speculative forecast.

Historically, markets where the underlying match is already decided but the contract remains open on-chain often show near-zero liquidity for the losing side, as seen in previous Wimbledon ATP contracts where early results were not immediately reflected in conditional token prices until oracle updates[2][4]. In such cases, the probability for the player who lost the match collapses to 0% once the result is confirmed on major sports data feeds, mirroring the current pricing for Halys despite the theoretical 7-day delay clause in the contract terms.

Traders should monitor the on-chain oracle update status on Polygon, specifically whether the USDC-based conditional tokens have been redeemed for the winning outcome, as delays in oracle confirmation can temporarily sustain misleading probabilities[4]. Additionally, check for any official announcements from the All England Lawn Tennis and Croquet Club regarding match validity or tie-breaker rules, though no such dependencies are expected given the clear final score[5][6]. Recent analysis from Dimers confirms Giron’s 52.4% win probability pre-match, which aligns with the post-match reality now embedded in the market[2].

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). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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 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.

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.