Swiss Open: Juan Manuel Cerundolo vs Casper Ruud

Platform comparison

Market context

Juan Manuel Cerundolo has already defeated Casper Ruud 6-2, 1-6, 6-3 in the quarter-final of the EFG Swiss Open at Gstaad on Friday, confirming the match took place and concluded with Cerundolo advancing [1]. The prediction market in question, which currently shows a 100% YES probability for Cerundolo advancing, is therefore settled on a known outcome rather than a live contest, despite the description referencing a future date of 17 July 2026.

Historically, prediction markets that lock in 100% probability after a match result is confirmed reflect the absence of uncertainty, contrasting sharply with pre-match sportsbook lines where Ruud was favoured at $1.33 against Cerundolo’s $3.40 [3]. This divergence highlights how post-result markets eliminate the risk premium embedded in betting odds, whereas analyst models prior to the match still assigned Ruud a 72% chance of victory, underscoring the surprise nature of Cerundolo’s win [3].

Traders should monitor official ATP tournament records and Gstaad result archives to confirm the match’s final status and ensure no late cancellations or appeals alter the settlement [1]. With the settlement window ending in July 2026, the key dependency is the formal confirmation that the match was completed and not delayed beyond the seven-day threshold, which would trigger a 50-50 resolution [1]. No further announcements are expected given the result is already public.

Sources: 1 · 2 · 3

Methodology

This page reviews Swiss Open: Juan Manuel Cerundolo vs Casper Ruud 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 Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.