National Bank Open: Rafael Jodar vs Arthur Fils

Platform comparison

Market context

Arthur Fils and Rafael Jodar are due to meet again at the National Bank Open after splitting their recent season meetings, with Jodar taking Washington on hard courts in straight sets and Fils winning their earlier Barcelona semi-final on clay. That mixed head-to-head is the main reason the current crowd-implied 54% for Fils is only a modest lean rather than a strong price, because the market is weighing both the more recent hard-court result and Fils’s stronger overall tour profile. [1][3][11]

The comparable-case frame is straightforward: when these two have met, the surface has mattered, and the hard-court rematch in Washington produced a cleaner result for Jodar than the clay meeting in Barcelona did for Fils. Fils’s broader 2026 numbers remain solid, but Jodar has also posted a strong year and has already shown he can handle this matchup on the same surface, so probabilities in the mid-50s typically imply a fairly even contest rather than a clear favourite. [1][2][4][13]

The main catalysts to watch are simple: whether the scheduled match goes ahead on time, whether either player’s quarter-final path changes the draw context, and any official ATP or tournament announcement on court assignment, order of play, or medical/retirement issues. The market settles on the player who advances, but if the match is not played, ends tied, or drifts beyond the seven-day delay rule without a winner, it resolves 50-50, so any scheduling disruption between now and the settlement window is directly relevant. [10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track National Bank Open: Rafael Jodar vs Arthur Fils 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

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.

UK Frequently Asked Questions

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 Prediction Today. 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.

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Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

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UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.