Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Madison Keys vs Xiyu Wang | 100% |
| Completed Match | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 2 Winner | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Match O/U 21.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 1 Winner | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set Handicap +/-1.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Match O/U 22.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 1 O/U 10.5 | 100% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Total Sets: O/U 2.5 | 0% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Set 2 O/U 10.5 | 0% |
| Cincinnati Open: Madison Keys vs Xiyu Wang Match O/U 23.5 | 0% |
Market context
Market consensus: 100% chance of cincinnati open: madison keys vs xiyu wang. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Madison Keys and Xiyu Wang in the Cincinnati Open, originally scheduled for August 19, 2026 at 11:00AM ET. This market will resolve …
Methodology
This page compares Cincinnati Open: Madison Keys vs Xiyu Wang 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 Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.
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.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- 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. Polymarket Alternative 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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