National Bank Open: Terence Atmane vs Jakub Mensik

Platform comparison

Market context

Terence Atmane against Jakub Menšík in Montreal is being priced as a major mismatch, with the crowd-implied probability on Atmane at **0% YES** and the consensus firmly with Menšík as the favourite. That fits the broader market shape: Menšík is the higher-ranked player and the stronger hard-court profile, while Atmane is being treated as the underdog whose path to victory would need a significant upset rather than a routine hold of serve and tie-break drift.[1][18]

For handicapper context, the closest comparable reading is other third-round ATP Masters 1000 matches where the market leans heavily on ranking gap, recent hard-court form and expected baseline consistency. Public previews and odds boards point to Menšík as the standard side, with some models even projecting a straight-sets win, which explains why the market consensus is concentrated rather than split.[16][18] The value question, if any, is on a contrarian Atmane angle only if traders think the price has overcorrected for the ranking gap and underweighted the volatility of a left-hander with a disruptive serve; otherwise, the favourite remains the cleaner read.[18]

The main catalysts are scheduling and completion risk rather than head-to-head nuance. The match was listed as a third-round meeting on 7 August, but the market rules mean any cancellation, no-contest, or delay beyond seven days from the scheduled date resolves 50-50, so traders need to watch official tournament status and whether the fixture is actually played to completion.[2][5] Live tennis listings already had the match on the board as upcoming, which is the key dependency: if the event proceeds normally, Menšík’s path remains the consensus outcome; if it does not, the settlement structure becomes the real driver.[11][17]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews National Bank Open: Terence Atmane vs Jakub Mensik 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 Who Will Win, which mirrors the Polymarket order book at 0% fees.

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

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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.