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, Qualification: Maddison Inglis vs Alycia Parks | 100% Maddison Inglis | 0% Alycia Parks |
| Completed Match | 100% YES | 0% NO |
| HSBC Championships, Qualification: Maddison Inglis vs Alycia Parks Set 1 Winner | 0% Inglis | 100% Parks |
| HSBC Championships, Qualification: Maddison Inglis vs Alycia Parks Set 1 O/U 8.5 | 100% Over | 0% Under |
| HSBC Championships, Qualification: Maddison Inglis vs Alycia Parks Total Sets: O/U 2.5 | 100% Over 2.5 | 0% Under 2.5 |
| HSBC Championships, Qualification: Maddison Inglis vs Alycia Parks Match O/U 21.5 | 100% Over | 0% Under |
Market context
Maddison Inglis and Alycia Parks are scheduled to meet in the opening round of HSBC Championships qualifying on 6 June 2026 at 7:40 AM ET. The market currently prices this contract at 100% YES on Polymarket, reflecting near-certainty that one player will advance and the match will conclude within the settlement window. This extreme pricing leaves no room for the 50-50 resolution scenarios—cancellation, tie, or abandonment beyond seven days—that the contract explicitly permits.
Historical precedent suggests qualifying matches at established WTA events rarely fail to complete. The HSBC Championships, held annually in Shenzhen, maintains consistent scheduling and court availability. Parks, ranked in the top 30 globally as of early 2026, typically features in main draws rather than qualifying, though injury or late withdrawal remains possible. Inglis, an Australian player with WTA experience, has participated in qualifying rounds across multiple tournaments without notable disruption patterns. Neither player has a documented history of match abandonment or scheduling conflicts that would elevate the probability of a 50-50 resolution.
Traders should monitor official WTA communications and tournament draw confirmations as the event approaches. Weather disruptions in Shenzhen during early June are uncommon but not unprecedented. Any injury announcements from either player's camp, particularly in the week before 6 June, would signal increased risk of withdrawal. The settlement window closes 6 June at 11:40 AM ET, providing a tight three-hour buffer after the scheduled start time; matches extending into subsequent rounds or weather delays could push resolution into ambiguous territory.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- 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.
- What does it cost to trade on Kalshi UK?
- Zero. Kalshi UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in 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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