Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
50% | 50% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| A | 50% |
| B | 50% |
| C | 50% |
| D | 50% |
| E | 50% |
| F | 50% |
| G | 50% |
| H | 50% |
| I | 50% |
| J | 50% |
| Other | 50% |
| Ben Shelton | 12% |
| Arthur Fils | 6% |
| Tommy Paul | 5% |
| Brandon Nakashima | 5% |
| Jakub Mensik | 5% |
| Casper Ruud | 4% |
| Frances Tiafoe | 4% |
| Matteo Arnaldi | 4% |
| Hubert Hurkacz | 3% |
| Tallon Griekspoor | 3% |
| Mariano Navone | 3% |
| Nuno Borges | 3% |
| Cameron Norrie | 3% |
| Alex Michelsen | 3% |
| Alexei Popyrin | 3% |
| Luciano Darderi | 2% |
| Arthur Rinderknech | 2% |
| Jannik Sinner | 0% |
| Alexander Zverev | 0% |
| Daniil Medvedev | 0% |
| Andrey Rublev | 0% |
| Grigor Dimitrov | 0% |
| Stefanos Tsitsipas | 0% |
| Taylor Fritz | 0% |
| Ugo Humbert | 0% |
| Holger Rune | 0% |
| Felix Auger-Aliassime | 0% |
| Alejandro Tabilo | 0% |
| Karen Khachanov | 0% |
| Sebastian Korda | 0% |
| Nicolas Jarry | 0% |
| Alexander Bublik | 0% |
| Jack Draper | 0% |
| Gael Monfils | 0% |
| Adrian Mannarino | 0% |
| Jordan Thompson | 0% |
| Tomas Martin Etcheverry | 0% |
| Marcos Giron | 0% |
| Tomas Machac | 0% |
| Pedro Martinez | 0% |
| Alejandro Davidovich Fokina | 0% |
| Fabian Marozsan | 0% |
| Flavio Cobolli | 0% |
| Miomir Kecmanovic | 0% |
| Lorenzo Sonego | 0% |
| Roman Safiullin | 0% |
| Denis Shapovalov | 0% |
| Gabriel Diallo | 0% |
| Milos Raonic | 0% |
| Kei Nishikori | 0% |
| Vasek Pospisil | 0% |
| Pablo Carreno Busta | 0% |
| Dusan Lajovic | 0% |
| Giovanni Mpetshi Perricard | 0% |
| Corentin Moutet | 0% |
| Jaume Munar | 0% |
| Roberto Carballes Baena | 0% |
| Dominik Koepfer | 0% |
| Facundo Diaz Acosta | 0% |
| Max Purcell | 0% |
| Aleksandar Vukic | 0% |
| Marton Fucsovics | 0% |
| Hugo Gaston | 0% |
| Federico Coria | 0% |
| Sumit Nagal | 0% |
| Thiago Seyboth Wild | 0% |
| Rinky Hijikata | 0% |
| Christopher O'Connell | 0% |
| Daniel Altmaier | 0% |
Market context
Traders on decentralised prediction markets give 50% probability to atp 1000 montreal: winner. This market will resolve according to the winner of the 2026 National Bank Open (ATP Masters 1000, Montreal), currently scheduled for August 2 – August 13, 2026. If this tournament is postponed after…
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
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
- 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 PolyGram. 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%.
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