Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
97% | 3% | 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: Iga Swiatek vs Nadia Podoroska | 97% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 1 Winner | 95% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set Handicap +/-1.5 | 89% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 2 Winner | 51% |
| Completed Match | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Match O/U 21.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 2 O/U 8.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set Handicap +/-1.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 2 O/U 9.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Match O/U 22.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 1 O/U 10.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 2 O/U 10.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Match O/U 23.5 | 50% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Game Spread +/-8.5 | 45% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 1 O/U 8.5 | 38% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Set 1 O/U 9.5 | 19% |
| US Open WTA: Iga Swiatek vs Nadia Podoroska Total Sets: O/U 2.5 | 11% |
Market context
Traders on decentralised prediction markets give 97% probability to pronóstico: us open wta: iga swiatek vs nadia podoroska. This market refers to the tennis match between Iga Swiatek and Nadia Podoroska in the US Open WTA, originally scheduled for September 2, 2026 at 11:00AM ET. This market will resolve to 'Iga Swiatek' …
Methodology
We track Pronóstico: US Open WTA: Iga Swiatek vs Nadia Podoroska across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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
- 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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es 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 Pronóstico: US Open WTA: Iga Swiatek vs Nadia Podoroska on Polymarket Qué Es
Live order book, 0% fees, USDC settlement in seconds.
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