Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative 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 |
|---|---|
| Roehampton: Michael Geerts vs Radu Albot | 100% |
| Completed Match | 100% |
| Roehampton: Michael Geerts vs Radu Albot Set 2 Winner | 100% |
| Roehampton: Michael Geerts vs Radu Albot Total Sets: O/U 2.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Set 1 O/U 8.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Set 2 O/U 8.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Match O/U 21.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Match O/U 22.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Set 1 O/U 9.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Set 2 O/U 9.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Match O/U 23.5 | 100% |
| Roehampton: Michael Geerts vs Radu Albot Set 1 Winner | 0% |
| Roehampton: Michael Geerts vs Radu Albot Set Handicap +/-1.5 | 0% |
| Roehampton: Michael Geerts vs Radu Albot Set Handicap +/-1.5 | 0% |
| Roehampton: Michael Geerts vs Radu Albot Set 1 O/U 10.5 | 0% |
| Roehampton: Michael Geerts vs Radu Albot Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to roehampton: michael geerts vs radu albot. This market refers to the tennis match between Michael Geerts and Radu Albot in the Roehampton, originally scheduled for August 19, 2026 at 7:30AM ET. This market will resolve to 'Michael Geerts' if …
Methodology
We track Roehampton: Michael Geerts vs Radu Albot 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
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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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