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, Qualification: Marco Trungelliti vs Sebastian Ofner | 100% |
| Completed Match | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 2 Winner | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Total Sets: O/U 2.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 1 O/U 8.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Match O/U 21.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 2 O/U 8.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 1 O/U 9.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Match O/U 22.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 2 O/U 9.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Match O/U 23.5 | 100% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 1 Winner | 0% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set Handicap +/-1.5 | 0% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 1 O/U 10.5 | 0% |
| Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner Set 2 O/U 10.5 | 0% |
Market context
Marco Trungelliti and Sebastian Ofner are scheduled to meet in the Cincinnati Open men's qualifying draw on 11 August 2026. The match represents a first-round qualifying fixture at one of the ATP's most prestigious hard-court events, held annually in Ohio. Both players compete regularly on the ATP Challenger circuit; Trungelliti, an Argentine with a career-high ranking near 140, has qualified for major tournaments sporadically over recent seasons, whilst Ofner, an Austrian ranked in similar territory, has shown steadier progression through qualifying rounds at Masters 1000 events. The 100% implied probability reflects either extremely limited liquidity in early-stage tennis qualifying markets or a data anomaly, as qualifying matches between players of comparable ranking typically carry meaningful uncertainty.
Qualifying draws at Cincinnati often see withdrawals or schedule adjustments due to main-draw promotions or injury. The settlement window closes 18 August 2026—seven days after the scheduled date—which accommodates standard tournament pacing but leaves minimal buffer for weather delays on hard courts. Traders should monitor ATP official draw confirmations and player injury bulletins in the week preceding the match; late withdrawals by either competitor would trigger the 50-50 tie-break clause. Recent ATP Challenger results and head-to-head records between Trungelliti and Ofner, if available through ATP databases, would provide baseline form context. The current probability reading warrants scepticism given typical qualifying-match volatility; significant movement or liquidity injection would signal genuine market conviction rather than structural mispricing.
Methodology
This page reads Cincinnati Open, Qualification: Marco Trungelliti vs Sebastian Ofner on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- 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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