National Bank Open: Zachary Svajda vs Arthur Fils

Platform comparison

Market context

Polymarket is pricing this conditional token at **0% YES**, which means the contract is effectively saying there is no market-implied chance, today, that Zachary Svajda advances over Arthur Fils on the current order book. On Polymarket, traders are buying and selling USDC-backed positions on Polygon, so the quoted price reflects where users think the settlement token should trade rather than a guaranteed match result.

The sporting context points the other way: this is a first meeting, but Fils arrives with the stronger profile, including a higher ranking and a far better 2026 record. Tennis data sources list Fils at about **ATP No. 24** and Svajda around **No. 87**, with Fils also holding a much higher career win rate and superior hard-court numbers this season, which is the relevant surface in Montreal.[1][2][7] Comparable head-to-head markets with a large ranking and form gap often sit heavily one-sided before serve, especially when the favourite has the cleaner hard-court résumé and no injury flag is attached.

The main catalysts to watch are simple and mechanical: official tournament order-of-play updates, late withdrawals, and any change to the scheduled start time. Flashscore and other match listings already show the fixture queued for 5 August, but odds can still move if the match is delayed, rescheduled, or if a walkover occurs before play, because Polymarket’s settlement depends on whether the match is actually played and whether one player advances.[5][8][11] If the match starts and is unfinished, the exchange outcome still turns on who advances, so the live scoreboard and ATP match status matter as much as the pre-match price.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews National Bank Open: Zachary Svajda vs Arthur Fils 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 Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

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.

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%.