Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 1 O/U 8.5 | 100% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 1 O/U 9.5 | 100% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 1 O/U 10.5 | 100% |
| US Open WTA: Katie Volynets vs Linda Noskova Set Handicap +/-1.5 | 100% |
| US Open WTA: Katie Volynets vs Linda Noskova Game Spread +/-4.5 | 100% |
| US Open WTA: Katie Volynets vs Linda Noskova | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Match O/U 21.5 | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 2 O/U 8.5 | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 2 Winner | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 1 Winner | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Total Sets: O/U 2.5 | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 2 O/U 9.5 | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Match O/U 22.5 | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Match O/U 23.5 | 0% |
| US Open WTA: Katie Volynets vs Linda Noskova Set 2 O/U 10.5 | 0% |
Market context
Live Polymarket data shows 100% YES probability for US Open WTA: Katie Volynets vs Linda Noskova. This market refers to the tennis match between Katie Volynets and Linda Noskova in the US Open WTA, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Katie Volynets…
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 PolyGram, 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 PolyGram. 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.
- 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.
- 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.
- 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.
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