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 | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 1 Winner | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Total Sets: O/U 2.5 | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Match O/U 21.5 | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 2 O/U 8.5 | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Match O/U 22.5 | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 2 O/U 9.5 | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Match O/U 23.5 | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 2 O/U 10.5 | 100% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina | 0% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 1 O/U 8.5 | 0% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 2 Winner | 0% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set Handicap +/-1.5 | 0% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 1 O/U 9.5 | 0% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set Handicap +/-1.5 | 0% |
| National Bank Open: Xinyu Wang vs Daria Kasatkina Set 1 O/U 10.5 | 0% |
Market context
Polymarket is pricing this contract at **0% YES** right now, which means the market is treating a Wang advance as essentially not priced in and is instead sitting on the no-side unless the match result changes or the market falls into its 50-50 fallback. On Polymarket, the trade lives as USDC on Polygon and settles through conditional tokens, so the practical question is not just who is favoured on court but whether the listed match is actually completed within the settlement rules.
The tennis context does not point to a clean favourite. Current match listings show the National Bank Open first-round meeting between Xinyu Wang and Daria Kasatkina, with Wang around WTA No. 42 and Kasatkina around No. 61 in one live listing, while other pre-match pages had the contest close to even on projection. Their head-to-head is narrow, with Wang leading 2-1 overall, including a hard-court win in Beijing in 2023 and a straight-sets win in Berlin in 2025, so the historical frame is competitive rather than one-sided.
For traders, the main catalysts are straightforward: whether the match actually starts, whether it is moved again on schedule, and whether either player withdraws or retires after play begins. The market resolves to 50-50 if the match is not played at all, ends level, or is delayed beyond seven days from the scheduled date without a winner, so official order-of-play updates and tournament scoreboards matter as much as on-court form. Recent match pages still listed the fixture on 3–4 August 2026, which reinforces that the key risk is timing and completion, not just outright performance.
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.
- 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 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 PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade National Bank Open: Xinyu Wang vs Daria Kasatkina on PolyGram
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