Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Bot UK) Pick polygram.ink (preferred broker) |
84% | 16% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
84% | 16% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Karen Khachanov vs Terence Atmane Set 1 O/U 8.5 | 84% |
| National Bank Open: Karen Khachanov vs Terence Atmane Match O/U 21.5 | 64% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set 1 O/U 9.5 | 60% |
| National Bank Open: Karen Khachanov vs Terence Atmane | 56% |
| National Bank Open: Karen Khachanov vs Terence Atmane Match O/U 22.5 | 56% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set 2 Winner | 54% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set 1 Winner | 52% |
| Completed Match | 50% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set 2 O/U 8.5 | 50% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set 2 O/U 9.5 | 50% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set 2 O/U 10.5 | 50% |
| National Bank Open: Karen Khachanov vs Terence Atmane Match O/U 23.5 | 49% |
| National Bank Open: Karen Khachanov vs Terence Atmane Total Sets: O/U 2.5 | 43% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set 1 O/U 10.5 | 36% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set Handicap +/-1.5 | 33% |
| National Bank Open: Karen Khachanov vs Terence Atmane Set Handicap +/-1.5 | 25% |
Market context
Market consensus: 84% chance of national bank open: karen khachanov vs terence atmane. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Karen Khachanov and Terence Atmane in the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. This market wil…
Methodology
This page reviews National Bank Open: Karen Khachanov vs Terence Atmane 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 Bot UK, 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
- 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.
- 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%.
Trade National Bank Open: Karen Khachanov vs Terence Atmane on Polymarket Bot UK
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