Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Prediction Market UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Prediction Market UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Prediction Market UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Prediction Market UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Prediction Market UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Prediction Market 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 Prediction Market UK.
Active sub-markets
| Grass Court Championships: Paula Badosa vs Coco Gauff | 100% Paula Badosa | 0% Coco Gauff |
| Completed Match | 100% YES | 0% NO |
| Grass Court Championships: Paula Badosa vs Coco Gauff Set 2 Winner | 100% Badosa | 0% Gauff |
| Grass Court Championships: Paula Badosa vs Coco Gauff Set 2 O/U 9.5 | 0% Over | 100% Under |
| Grass Court Championships: Paula Badosa vs Coco Gauff Match O/U 22.5 | 100% Over | 0% Under |
| Grass Court Championships: Paula Badosa vs Coco Gauff Total Sets: O/U 2.5 | 100% Over 2.5 | 0% Under 2.5 |
Market context
Paula Badosa and Coco Gauff are scheduled to meet in the grass-court championships on 17 June 2026. The winner of this match advances; the loser is eliminated from the tournament. In prediction-market terms, a YES share represents a bet that Badosa progresses, whilst a NO share represents a bet that Gauff progresses. The current crowd probability of 100% YES suggests traders believe Badosa will win with near-certainty, though this extreme reading warrants scrutiny given both players' competitive records on grass.
Historically, Gauff has performed inconsistently on grass surfaces relative to her hard-court dominance, whilst Badosa—a former world number two—has shown greater comfort on faster courts. However, Badosa's injury history complicates the picture; she withdrew from multiple tournaments in 2024 and 2025 with back and shoulder issues. Comparable pre-tournament markets on grass-court matchups between top-ten players typically reflect 55–70% probability for the higher-ranked player, suggesting the current 100% reading is an outlier that may reflect incomplete information or low trading volume.
Traders should monitor official tournament draws and player health bulletins released in the week before 17 June. Any withdrawal announcement, late injury disclosure, or schedule changes would trigger immediate repricing. Grass-court form in the fortnight preceding this event—particularly performance at warm-up tournaments—will provide concrete data on current condition and confidence levels for both players. Settlement occurs at 13:30 GMT on 24 June; matches delayed beyond 7 days without completion resolve to 50–50.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
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?
- Prediction Market 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 does it cost to trade on Prediction Market UK?
- Zero. Prediction Market 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, Prediction Market 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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