Swedish Open: Andrey Rublev vs Sebastian Baez

Platform comparison

Market context

Andrey Rublev faces Sebastian Baez in the quarter-final of the ATP Swedish Open (Nordea Open) in Båstad, a match scheduled for 17 July 2026. The market currently implies a 100% probability that Rublev advances, suggesting the crowd views the outcome as virtually certain despite the match not yet being completed.

Historically, such extreme crowd-implied probabilities in live tennis markets often precede a sharp correction once the match begins, particularly when independent models assign a lower win chance. For instance, predictive algorithms currently estimate Rublev’s win probability at 59%, not 100%, indicating a significant divergence between crowd sentiment and statistical reality [4]. Comparable cases in ATP quarter-finals show that when models assign a 50–65% win chance but markets price at 95–100%, traders frequently exploit the mispricing by shorting the favourite once early set scores contradict the implied certainty [3].

Key catalysts include the official start time confirmation, any pre-match injury announcements, and the first-set scoreline. Programmatic traders should monitor live odds feeds for deviations from the 59% model baseline and trigger conditional orders if the market price drops below 90% after the first set. Recent previews confirm Rublev is tipped to win, but the 59% model probability remains the critical dependency for assessing whether the 100% market price is sustainable [3][4].

Sources: 1 · 2 · 3 · 4

Methodology

We track Swedish Open: Andrey Rublev vs Sebastian Baez across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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 Review UK. 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.

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 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.