ATP 1000 Montreal: Winner

Platform comparison

Market context

The 2026 men’s event in Montreal is the National Bank Open, an ATP Masters 1000 tournament scheduled for 2–13 August, and this market pays out on the official champion named by the ATP Tour or tournament organiser. In prediction-market terms, a **YES** share means the listed player wins the title; a **NO** share means he does not, while an unresolved or delayed outcome can be pushed into the market’s “Other” rule if the event slips beyond the stated deadline.

The current **0% YES** crowd price is best read as a signal that the named player is not being treated as a live title favourite, not as proof the tournament outcome is predetermined. Montreal is one of the biggest hard-court events outside the Slams, with a 96-player draw and a recent title history that has included Ben Shelton in 2025, showing that form, fitness and draw position can matter as much as ranking alone.[17] Because the market resolves only to the official winner, the key comparison is not who is strongest on paper, but who survives the full week.

Traders should watch the draw, seedings, injury and withdrawal news, and the ATP’s live results page as the event progresses, because early exits or walkovers can quickly change the field.[1][14] The tournament website and ATP results feed are the cleanest resolution references, while live ranking updates help identify which players may be under pressure to defend points or manage workload before the North American hard-court swing continues.[1][15][14]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track ATP 1000 Montreal: Winner 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

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 Prediction Market UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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%.