Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Iva Jovic vs Magda Linette | 100% |
| Completed Match | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Set 1 O/U 8.5 | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Set 2 O/U 8.5 | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Set 1 Winner | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Set 2 Winner | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Set Handicap +/-1.5 | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Set 2 O/U 9.5 | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Set 2 O/U 10.5 | 100% |
| National Bank Open: Iva Jovic vs Magda Linette Match O/U 21.5 | 0% |
| National Bank Open: Iva Jovic vs Magda Linette Total Sets: O/U 2.5 | 0% |
| National Bank Open: Iva Jovic vs Magda Linette Set 1 O/U 9.5 | 0% |
| National Bank Open: Iva Jovic vs Magda Linette Match O/U 22.5 | 0% |
| National Bank Open: Iva Jovic vs Magda Linette Set Handicap +/-1.5 | 0% |
| National Bank Open: Iva Jovic vs Magda Linette Match O/U 23.5 | 0% |
| National Bank Open: Iva Jovic vs Magda Linette Set 1 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of national bank open: iva jovic vs magda linette. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Iva Jovic and Magda Linette in the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. This market will resol…
Methodology
We read National Bank Open: Iva Jovic vs Magda Linette from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
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.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets 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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