Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi 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 UK.
Active sub-markets
| HSBC Championships: Shuai Zhang vs Alexandra Eala Set 1 O/U 8.5 | 100% Over | 0% Under |
| HSBC Championships: Shuai Zhang vs Alexandra Eala Set 1 O/U 9.5 | 0% Over | 100% Under |
| HSBC Championships: Shuai Zhang vs Alexandra Eala Set 1 O/U 10.5 | 0% Over | 100% Under |
| HSBC Championships: Shuai Zhang vs Alexandra Eala | 0% Shuai Zhang | 100% Alexandra Eala |
| Completed Match | 100% YES | 0% NO |
| HSBC Championships: Shuai Zhang vs Alexandra Eala Set Handicap +/-1.5 | 0% Zhang | 100% Eala |
Market context
Shuai Zhang, the 35-year-old Chinese veteran ranked outside the WTA top 100, faces 20-year-old Filipino prospect Alexandra Eala in the HSBC Championships scheduled for 9 June 2026. The match carries a 100% implied probability on Polymarket's USDC-denominated contract on Polygon, suggesting traders are pricing near-certainty that the fixture will proceed and produce a decisive winner within the settlement window closing 16 June. This extreme confidence reflects either high conviction in match completion or minimal liquidity depth in the conditional token pair.
Zhang has competed sporadically in recent seasons, appearing primarily on the ITF circuit after declining WTA rankings. Eala, conversely, has been building momentum through ITF tournaments and lower-tier WTA events, reaching a career-high ranking in 2024. Historical precedent from comparable WTA tier-two events shows cancellation rates below 3% absent weather or injury withdrawals in June scheduling. The 100% pricing likely reflects the HSBC Championships' established infrastructure and June's favourable weather window in the host venue, rather than Zhang's form or matchup dynamics.
Traders should monitor official HSBC Championships draw confirmations and injury bulletins from both players' camps through early June. Recent WTA scheduling disruptions have been rare; the primary catalyst for resolution ambiguity would be last-minute player withdrawal or extraordinary circumstances forcing postponement beyond the seven-day grace period. Current pricing leaves negligible margin for scenarios triggering the 50-50 tie-break resolution, suggesting the market has discounted contingency risk substantially.
Methodology
We track HSBC Championships: Shuai Zhang vs Alexandra Eala on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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?
- Kalshi 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.
- 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.
- 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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