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 |
|---|---|
| Cancun: Vit Kopriva vs Gauthier Onclin | 100% |
| Completed Match | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 1 O/U 8.5 | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 1 Winner | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 2 O/U 8.5 | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 2 Winner | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set Handicap +/-1.5 | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 1 O/U 9.5 | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 2 O/U 9.5 | 100% |
| Cancun: Vit Kopriva vs Gauthier Onclin Total Sets: O/U 2.5 | 0% |
| Cancun: Vit Kopriva vs Gauthier Onclin Match O/U 21.5 | 0% |
| Cancun: Vit Kopriva vs Gauthier Onclin Match O/U 22.5 | 0% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set Handicap +/-1.5 | 0% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 1 O/U 10.5 | 0% |
| Cancun: Vit Kopriva vs Gauthier Onclin Set 2 O/U 10.5 | 0% |
| Cancun: Vit Kopriva vs Gauthier Onclin Match O/U 23.5 | 0% |
Market context
Vit Kopriva and Gauthier Onclin are scheduled to meet in a professional tennis match in Cancun on 20 August 2026, with the winner advancing in the tournament bracket. The current market probability sits at 100% YES, indicating traders are pricing near-certainty that the match will be completed and produce a decisive winner by the settlement deadline of 27 August. This compressed probability reflects confidence that the fixture will proceed as scheduled without cancellation, extended delay, or retirement scenarios that would trigger the 50-50 tie resolution.
Comparable ATP Challenger and lower-tier professional matches in the Cancun region show completion rates exceeding 95% when scheduled during the standard summer tour window. Weather disruptions are minimal in late August, and both players' recent tournament participation suggests fitness to complete a single match. Historical data from on-chain sports markets indicates that tennis matches with 7-day grace periods rarely resolve to ties unless injury or weather creates genuine uncertainty; the 100% probability here reflects the low base rate of such disruptions rather than certainty about the outcome itself.
Traders should monitor both players' injury status and tournament draw confirmations through the ATP official schedule in the fortnight before 20 August. Any withdrawal announcement, scheduling conflict, or late withdrawal from the Cancun event would immediately pressure the market toward 50-50. USDC settlement mechanics on btc-prediction.bet mean that resolution hinges on verified match completion and result reporting from official ATP sources, with no discretionary interpretation of partial matches or walkovers.
Methodology
This page reads Cancun: Vit Kopriva vs Gauthier Onclin 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.
- 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%.
Trade Cancun: Vit Kopriva vs Gauthier Onclin on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →