Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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 |
|---|---|
| Roehampton: Radu Albot vs Leonardo Rossi | 100% |
| Completed Match | 100% |
Market context
Radu Albot faces Leonardo Rossi in the Roehampton qualifying draw in August 2026, with the market currently pricing the Moldovan at 100% to advance. The settlement window closes on 24 August, allowing a week beyond the originally scheduled 17 August date for the match to conclude.
Albot, ranked in the 80s-90s range historically, has shown inconsistent qualifying form across grass-court events. Rossi, an Italian journeyman typically hovering around 150-200 in the rankings, has limited pedigree on grass. Historical qualifying matchups between players of this calibre—mid-ranking professionals at secondary venues—rarely produce consensus certainties. The 100% probability reflects either strong recent form data favouring Albot, withdrawal speculation around Rossi, or limited market liquidity rather than genuine certainty. Comparable grass-court qualifying encounters between similarly-ranked players typically settle with 55-65% probability for the higher-ranked player, suggesting the current odds may be overweighting Albot's chances.
Traders should monitor the official ATP qualifying draw confirmation and any late withdrawals in the days preceding the event. Grass-court form volatility—particularly for players outside the top 50—means recent tournament results matter significantly. Injury reports or schedule conflicts affecting either player could shift the match outcome materially. The seven-day resolution window creates potential for fixture rescheduling, which historically has favoured lower-ranked players who benefit from additional preparation time. Any announcement regarding surface conditions or weather forecasts for Roehampton in mid-August may also influence perceived advantage.
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 Who Will Win, 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
- 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.
- 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.
- 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%.
Trade Roehampton: Radu Albot vs Leonardo Rossi on Who Will Win
Live order book, 0% fees, USDC settlement in seconds.
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