Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 Winner | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart | 100% |
| Completed Match | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Match O/U 21.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Match O/U 22.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Match O/U 23.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 O/U 8.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Total Sets: O/U 2.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 O/U 10.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 O/U 9.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 O/U 10.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 Winner | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set Handicap +/-1.5 | 0% |
Market context
Live Polymarket data shows 100% YES probability for Wimbledon WTA: Jelena Ostapenko vs Harriet Dart. This market refers to the tennis match between Jelena Ostapenko and Harriet Dart in the Wimbledon WTA, originally scheduled for June 29, 2026 at 6:00AM ET. This market will resolve to 'Jelena Ostapen…
Methodology
We track Wimbledon WTA: Jelena Ostapenko vs Harriet Dart across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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 Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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 Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Wimbledon WTA: Jelena Ostapenko vs Harriet Dart on Best Prediction Markets UK
Live order book, 0% fees, USDC settlement in seconds.
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