Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
37% | 63% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
37% | 63% | 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
| Libema Open: Thijs Boogaard vs Yibing Wu | 37% Thijs Boogaard | 64% Yibing Wu |
| Completed Match | 51% YES | 50% NO |
| Libema Open: Thijs Boogaard vs Yibing Wu Set 1 O/U 8.5 | 100% Over | 0% Under |
| Libema Open: Thijs Boogaard vs Yibing Wu Set 1 O/U 9.5 | 0% Over | 100% Under |
| Libema Open: Thijs Boogaard vs Yibing Wu Set 1 O/U 10.5 | 0% Over | 100% Under |
| Libema Open: Thijs Boogaard vs Yibing Wu Total Sets: O/U 2.5 | 98% Over 2.5 | 3% Under 2.5 |
Market context
The Libema Open grass-court tournament in 's-Hertogenbosch will host a first-round match between Dutch qualifier Thijs Boogaard and Chinese player Yibing Wu on 8 June 2026. Polymarket currently prices Boogaard's advancement at 30 per cent, implying Wu as the stronger favourite despite Boogaard's home-court advantage. The match sits within the ATP 250 calendar, a tier where seeding and recent form carry substantial weight in determining outcomes. Settlement occurs on 15 June, allowing a seven-day buffer for rescheduling before the market resolves to 50-50 if no winner emerges.
Boogaard's recent trajectory through qualifying rounds and Wu's ranking position form the baseline for assessing this probability. Wu has competed consistently on the ATP circuit, whilst Boogaard's path to the main draw via qualifying suggests he enters as the lower-ranked player. Grass surfaces favour certain playing styles—serve-dominant players and those with strong net games typically outperform baseline grinders. Historical data from grass-court tournaments shows that players ranked outside the top 100 who reach main draws through qualifying win their first matches roughly 35–40 per cent of the time against seeded or higher-ranked opponents.
Traders should monitor official ATP communications regarding player withdrawals or injury updates in the week preceding the match. Weather conditions at 's-Hertogenbosch—particularly rain, which could delay proceedings—represent a secondary consideration given the settlement window's seven-day grace period. Recent tournament schedules suggest matches at this venue rarely extend beyond the scheduled date unless weather proves exceptional. The conditional token structure on Polygon means positions settle immediately upon official match results, with no ambiguity around retirement scenarios given the market's explicit terms.
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
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?
- On Kalshi UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- 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 Libema Open: Thijs Boogaard vs Yibing Wu on Kalshi UK
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