National Bank Open: Zachary Svajda vs Arthur Fils

Platform comparison

Market context

The match is Zachary Svajda against Arthur Fils in the National Bank Open men’s draw in Montréal, with market resolution tied to who advances rather than merely who starts. On the public numbers, Svajda is the lower-ranked player at ATP No. 87, while Fils is around No. 24, so a 0% crowd-implied YES price on Svajda is consistent with the market treating this as a near-zero chance upset unless there is a late withdrawal, retirement, or scheduling change.[4][8]

For comparison, the useful way to read this kind of contract is as a live event-processing problem: if the players are named in the order market feeds expect, the key issue is not style points but whether the match actually produces a winner inside the settlement window. There is no previous tour-level head-to-head between them, so programmatic models lean on ranking, surface splits, and recent form rather than matchup history; available season data show Fils with a stronger 2026 win rate and a cleaner hard-court record, while Svajda’s recent Montreal run included a messy first-round win with 38 unforced errors and no aces, albeit against a retirement. [2][5][6][17]

A trader watching this market should monitor the official order of play, any injury or withdrawal notices, and whether the tie is completed on schedule, because the contract can still settle 50-50 if the match is cancelled, left unplayed, or delayed beyond seven days. Flashscore and other live scoreboards already list the fixture for 5 August 2026, but the practical catalyst is whether the ATP draw and court schedule hold and whether either player is flagged as questionable before first ball; in a bot workflow, that is the point to trigger alerts, conditional orders, or auto-close logic rather than waiting on price alone.[1][4][6][8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track National Bank Open: Zachary Svajda 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

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 Bot 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%.