Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 2 Winner | 100% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 1 O/U 10.5 | 100% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Match O/U 22.5 | 99% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Total Sets: O/U 2.5 | 74% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff | 57% |
| Completed Match | 50% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Match O/U 21.5 | 50% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set Handicap +/-1.5 | 50% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Match O/U 23.5 | 50% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 2 O/U 8.5 | 0% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 1 Winner | 0% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 2 O/U 9.5 | 0% |
| Cincinnati Open: Roman Andres Burruchaga vs Jan-Lennard Struff Set 2 O/U 10.5 | 0% |
Market context
Roman Andres Burruchaga, an Argentine professional ranked outside the top 100, faces German veteran Jan-Lennard Struff in the Cincinnati Open first round on 13 August 2026. The 21% implied probability on Burruchaga reflects the significant ranking and experience gap; Struff has consistently held top-50 status and brings multiple ATP-level match wins against higher-ranked opponents. Burruchaga's path to the main draw typically relies on qualifying rounds, whereas Struff receives direct entry to Masters 1000 events. Historical matchups between players of this calibre differential—where the lower-ranked player sits outside the top 100—settle in favour of the established tour player roughly 75–80% of the time at this tournament tier.
Struff's recent form and injury status heading into Cincinnati will be the primary catalyst. German tennis media and ATP tour updates through July 2026 will signal whether he carries momentum from summer hard-court preparation or arrives fatigued from earlier rounds. Burruchaga's qualifying performance, if required, offers a secondary signal; a straight-sets loss in qualifying would suggest reduced confidence, whilst a run through qualifying could indicate improved form. The settlement window closes 20 August, allowing seven days beyond the scheduled date for rescheduling due to weather or other delays without triggering a 50-50 resolution.
On-chain liquidity for this match will likely remain modest given the lower profile of both players relative to seeded Cincinnati matchups. USDC settlement mechanics favour traders monitoring real-time ATP official results; any cancellation or tie—rare at this level—would resolve the market to 50-50 under the stated terms.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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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