Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) 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 |
|---|---|
| Completed Match | 100% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 1 O/U 8.5 | 100% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 2 O/U 8.5 | 100% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 1 O/U 9.5 | 100% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set Handicap +/-1.5 | 100% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 2 O/U 9.5 | 100% |
| National Bank Open: Sorana Cirstea vs Maya Joint | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 1 Winner | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Total Sets: O/U 2.5 | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 2 Winner | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set Handicap +/-1.5 | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Match O/U 21.5 | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Match O/U 22.5 | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Match O/U 23.5 | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 1 O/U 10.5 | 0% |
| National Bank Open: Sorana Cirstea vs Maya Joint Set 2 O/U 10.5 | 0% |
Market context
Live Polymarket data shows 100% YES probability for National Bank Open: Sorana Cirstea vs Maya Joint. This market refers to the tennis match between Sorana Cirstea and Maya Joint in the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. This market will resolve to 'Sorana Cirs…
Methodology
We track National Bank Open: Sorana Cirstea vs Maya Joint 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.
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 PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade National Bank Open: Sorana Cirstea vs Maya Joint on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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