Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 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: Kamilla Rakhimova vs Katerina Siniakova Set 1 O/U 8.5 | 100% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set 2 Winner | 100% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set 1 O/U 9.5 | 100% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set 1 O/U 10.5 | 100% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova | 98% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Match O/U 22.5 | 86% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Total Sets: O/U 2.5 | 70% |
| Completed Match | 50% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Match O/U 21.5 | 50% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Match O/U 23.5 | 50% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set Handicap +/-1.5 | 35% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set 1 Winner | 0% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set 2 O/U 8.5 | 0% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set 2 O/U 9.5 | 0% |
| National Bank Open: Kamilla Rakhimova vs Katerina Siniakova Set 2 O/U 10.5 | 0% |
Market context
Based on real-money crowd forecasting, national bank open: kamilla rakhimova vs katerina siniakova stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Kamilla Rakhimova and Katerina Siniakova in the National Bank Open, originally scheduled for August 4, 2026 at 5:00PM ET. This marke…
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets UK, which mirrors the Polymarket order book directly.
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.
FAQ
- 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'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.
- 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.
Trade National Bank Open: Kamilla Rakhimova vs Katerina Si… on Best Prediction Markets UK
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