Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
85% | 15% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
85% | 15% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro | 85% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 1 Winner | 78% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 2 Winner | 77% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set Handicap +/-1.5 | 65% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 1 O/U 8.5 | 60% |
| Completed Match | 50% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 2 O/U 8.5 | 50% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 2 O/U 9.5 | 50% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 2 O/U 10.5 | 50% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Match O/U 21.5 | 42% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 1 O/U 9.5 | 42% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Match O/U 22.5 | 39% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Match O/U 23.5 | 29% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Total Sets: O/U 2.5 | 28% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Set 1 O/U 10.5 | 20% |
Market context
Based on real-money crowd forecasting, national bank open: elina svitolina vs jessica bouzas maneiro stands at 85% likelihood according to current market consensus. This market refers to the tennis match between Elina Svitolina and Jessica Bouzas Maneiro in the National Bank Open, originally scheduled for August 4, 2026 at 11:00AM ET. This ma…
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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.
- 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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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