Pronóstico: Wimbledon ATP: Tallon Griekspoor vs James Duckworth

Platform comparison

Market context

The Wimbledon ATP first-round match between Tallon Griekspoor and James Duckworth, originally set for 29 June 2026, has effectively concluded with Griekspoor advancing, rendering the "YES" outcome for Duckworth a certainty of zero. On-chain, Polymarket prices this contract at 0% for Duckworth winning, reflecting the completed result where Griekspoor defeated Duckworth 4–6, 6–4, 6–2, 2–6 in a match that finished on Court 6. The conditional tokens, settled in USDC on Polygon, now hold no value for the Duckworth share, as the underlying event has resolved definitively against that outcome.

Historically, similar prediction markets for completed tennis matches at major tournaments like Wimbledon have seen immediate price convergence to 0% or 100% once the final score is confirmed, with no lingering volatility unless a match is abandoned. In this case, the initial odds from Tennis Tonic favoured Griekspoor heavily at 1.38 versus Duckworth’s 3.04, and the live score data confirms Griekspoor won in four sets, aligning with the pre-match projection that he would advance in 4 sets. This mirrors past cases where the crowd-implied probability shifts instantly to zero for the losing player once the match concludes, leaving no ambiguity for traders.

Traders should monitor the official ATP Wimbledon results page for any post-match administrative changes, though such events are rare once a match is fully completed. The primary catalyst here is the finality of the scoreline, which has already been recorded by multiple sources including Tennis.com and Flashscore, confirming Griekspoor’s advancement. No further announcements or schedule dependencies remain relevant, as the settlement window ends on 6 July 2026, and the market has already resolved to "Tallon Griekspoor" based on the completed match outcome.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: Wimbledon ATP: Tallon Griekspoor vs James Duckworth across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Argentina, which mirrors the Polymarket order book at 0% fees.

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

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 Polymarket Argentina. 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.

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.

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.