National Bank Open: Ignacio Buse vs Cameron Norrie

Platform comparison

Market context

Polymarket is pricing **Ignacio Buse vs Cameron Norrie** at about **13% YES** for Buse, which implies the market sees Norrie as the clear favourite on the current conditional-token book settled in USDC on Polygon. That is materially below the broader match pricing seen elsewhere: Kalshi is around **36%** for Buse and tennis models are clustering near a **62-64%** Norrie win probability, so Polymarket’s Buse side is trading at a significant discount to comparable references.[8][2][12]

For read-through, the market is best treated as a straight match-winner contract rather than a rating debate. Public previews and bookmaker lines currently place Norrie ahead, with Flashscore listing odds around **2.75 for Buse** and **1.46 for Norrie**, while other model-based previews also lean to Norrie by roughly two-to-one.[1][3][4] That backdrop matters because these markets can reprice quickly if the scheduled order changes or if there is any injury, walkover or late withdrawal before the first ball is struck; Polymarket-style contracts then settle from the actual outcome or revert to the stated fallback rules if the match is not played.[9]

The immediate catalysts are administrative rather than tactical: confirm whether the ATP Montreal draw still shows this pairing in the expected slot, watch for any official start-time shift, and check for injury or retirement news from either camp on match day. Tennis.com still listed the round-two meeting as upcoming with Norrie projected at **64%**, which suggests the fixture was live in the tournament feed even as pre-match probabilities were being updated.[12] Because the settlement window runs well beyond the scheduled date, a match delayed or abandoned without a winner would not simply resolve to one side; under the market terms, a cancellation, tie, or delay of more than seven days pushes the contract to **50-50**.[

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Alternative UK, which mirrors the Polymarket order book directly.

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.

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 Polymarket Alternative UK. 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.

Is Polymarket legal in the UK?

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.

Do I pay tax on prediction market profits in the UK?

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%.