Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| National Bank Open: Alina Korneeva vs Polina Kudermetova | 100% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 Winner | 100% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Total Sets: O/U 2.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Match O/U 21.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 Winner | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 O/U 8.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set Handicap +/-1.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Match O/U 22.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 O/U 9.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set Handicap +/-1.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Match O/U 23.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 O/U 10.5 | 50% |
| Completed Match | 0% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 O/U 8.5 | 0% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 O/U 9.5 | 0% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 O/U 10.5 | 0% |
Market context
Based on real-money crowd forecasting, national bank open: alina korneeva vs polina kudermetova stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Alina Korneeva and Polina Kudermetova in the National Bank Open, originally scheduled for August 3, 2026 at 10:00AM ET. This market …
Methodology
This overview of National Bank Open: Alina Korneeva vs Polina Kudermetova reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Legal UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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