Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Alternative UK) Pick polygram.ink (preferred broker) |
85% | 15% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
85% | 15% | 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: 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 Set 1 O/U 9.5 | 40% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Match O/U 21.5 | 38% |
| National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro Match O/U 22.5 | 38% |
| 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
The National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro prediction market currently prices this outcome at 85% YES. 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 market will resolve to…
Methodology
This page compares National Bank Open: Elina Svitolina vs Jessica Bouzas Maneiro specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative UK has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative UK offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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