Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win 2026) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| US Open WTA: Elina Svitolina vs Solana Sierra | 100% |
| Completed Match | 100% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 2 Winner | 100% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 1 Winner | 100% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set Handicap +/-1.5 | 100% |
| US Open WTA: Elina Svitolina vs Solana Sierra Game Spread +/-6.5 | 100% |
| US Open WTA: Elina Svitolina vs Solana Sierra Total Sets: O/U 2.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Match O/U 21.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 1 O/U 8.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 2 O/U 8.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Match O/U 22.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 1 O/U 9.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 2 O/U 9.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Match O/U 23.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 1 O/U 10.5 | 0% |
| US Open WTA: Elina Svitolina vs Solana Sierra Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to us open wta: elina svitolina vs solana sierra. This market refers to the tennis match between Elina Svitolina and Solana Sierra in the US Open WTA, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Elina Svitoli…
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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 US Open WTA: Elina Svitolina vs Solana Sierra on Who Will Win 2026
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