Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi Alternative UK Pick polygram.ink |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi Alternative UK → |
Polymarket polymarket.com |
80% | 20% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi Alternative UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi Alternative UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi Alternative UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi Alternative UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Kalshi Alternative UK.
Active sub-markets
| Roland Garros WTA: Sorana Cirstea vs Xiyu Wang | 80% YES | 20% NO |
| Completed Match | 51% YES | 50% NO |
| Roland Garros WTA: Sorana Cirstea vs Xiyu Wang Match O/U 21.5 | 41% YES | 60% NO |
| Roland Garros WTA: Sorana Cirstea vs Xiyu Wang Total Sets: O/U 2.5 | 50% YES | 50% NO |
| Roland Garros WTA: Sorana Cirstea vs Xiyu Wang Set 1 Winner | 75% YES | 25% NO |
| Roland Garros WTA: Sorana Cirstea vs Xiyu Wang Set 1 O/U 8.5 | 63% YES | 38% NO |
Market context
Traders on decentralised prediction markets give 80% probability to roland garros wta: sorana cirstea vs xiyu wang. This market refers to the tennis match between Sorana Cirstea and Xiyu Wang in the Roland Garros WTA, originally scheduled for May 31, 2026 at 5:00AM ET. This market will resolve to 'Sorana Cirstea' …
Methodology
We read Roland Garros WTA: Sorana Cirstea vs Xiyu Wang 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 quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.
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
- Where can I trade this market with the lowest fees?
- On Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Kalshi Alternative UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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 it cost to trade on Kalshi Alternative UK?
- Zero. Kalshi Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Roland Garros WTA: Sorana Cirstea vs Xiyu Wang on Kalshi Alternative UK
Live order book, 0% fees, USDC settlement in seconds.
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