Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
76% | 24% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
76% | 24% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Mirra Andreeva vs Leylah Fernandez | 76% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 2 Winner | 68% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 1 Winner | 66% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 1 O/U 8.5 | 51% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 2 O/U 8.5 | 51% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 2 O/U 9.5 | 51% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 2 O/U 10.5 | 51% |
| Completed Match | 50% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Total Sets: O/U 2.5 | 50% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 1 O/U 9.5 | 50% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set Handicap +/-1.5 | 50% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Match O/U 22.5 | 50% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set 1 O/U 10.5 | 50% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Match O/U 23.5 | 50% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Set Handicap +/-1.5 | 48% |
| National Bank Open: Mirra Andreeva vs Leylah Fernandez Match O/U 21.5 | 47% |
Market context
Based on real-money crowd forecasting, national bank open: mirra andreeva vs leylah fernandez stands at 76% likelihood according to current market consensus. This market refers to the tennis match between Mirra Andreeva and Leylah Fernandez in the National Bank Open, originally scheduled for August 8, 2026 at 10:00AM ET. This market wi…
Methodology
This page reviews National Bank Open: Mirra Andreeva vs Leylah Fernandez 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 Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees.
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
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- What are the best prediction markets for UK traders in 2026?
- For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.
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