Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon | 100% |
| Completed Match | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Total Sets: O/U 2.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 1 Winner | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 2 O/U 8.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 1 O/U 8.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Match O/U 21.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 2 O/U 9.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 1 O/U 9.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Match O/U 22.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 1 O/U 10.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Match O/U 23.5 | 100% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 2 Winner | 0% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set Handicap +/-1.5 | 0% |
| ITF Chacabuco: Giorgia Pedone vs Lucciana Perez Alarcon Set 2 O/U 10.5 | 0% |
Market context
Giorgia Pedone and Lucciana Perez Alarcon were already on court in Chacabuco, and live scoring shows their W35 semifinal being played on clay rather than sitting as a pre-match booking. That matters for a market now priced at **100% YES**, because the contract only resolves to 50-50 if the match is not played at all, or if it is delayed beyond seven days without a winner.
The form line is relatively tight but still leans to Pedone on paper. The two are separated by only a few ranking places, with Pedone around WTA No. 338 and Perez Alarcon around No. 341, and Tennis Explorer lists Pedone as the higher seed in this semifinal. Their recent Chacabuco runs also support why this market has stayed one-sided: Pedone arrived off a three-set quarter-final win over J. Estevez, while Perez Alarcon had taken earlier rounds in straights, including a 6-1, 6-0 result in the last 16 and a 6-1, 6-4 quarter-final.
For traders, the main catalysts are not abstract rating gaps but match-state and tournament scheduling. Flashscore and SofaScore both showed the fixture as live from around 14:10-14:20 UTC, which reduces the relevance of cancellation risk unless play is suspended before completion. The key watchpoints are any medical timeout, retirement, or official interruption from the ITF order of play, because those are the events that could flip a near-certain win into the market’s special 50-50 settlement path.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, 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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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