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 |
|---|---|
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik | 100% |
| Completed Match | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 2 Winner | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 1 Winner | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 1 O/U 8.5 | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 2 O/U 8.5 | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set Handicap +/-1.5 | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 1 O/U 9.5 | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 1 O/U 10.5 | 100% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Total Sets: O/U 2.5 | 0% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Match O/U 21.5 | 0% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 2 O/U 9.5 | 0% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Match O/U 22.5 | 0% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set Handicap +/-1.5 | 0% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Set 2 O/U 10.5 | 0% |
| Plovdiv 2: Yannick Alexandrescou vs Petr Brunclik Match O/U 23.5 | 0% |
Market context
The Plovdiv 2 meeting between Yannick Alexandrescou and Petr Brunclik is listed for 6 August on clay in Bulgaria, with several scoreboards showing a live start time around 12:00–13:10 UTC rather than the originally quoted 8:00am ET slot. That timing matters for settlement because the market only resolves to a named player if the match is actually completed with a winner; a cancellation, tie, or a delay beyond seven days would push it to 50-50 under the contract terms. Sources also disagree slightly on the phrasing of the fixture, but all point to the same Round 2 Challenger match in Plovdiv.[1][2][3][4]
The 100% YES crowd price implies the market is effectively treating Alexandrescou advancing as a certainty, which is unusual for a two-player tennis contract and usually reflects either stale pricing, thin liquidity, or a copied/awaiting-resolution state rather than true certainty. Comparable live listings and pre-match projections have not been uniform: Tennis.com showed Brunclik as the projected winner at 73%, while another tennis database described the pair as having equal career wins, which underlines that crowd pricing can diverge sharply from form-based models.[3][2] Brunclik’s current ranking is also listed around ATP 331 on one results page, indicating this is a lower-tier Challenger environment where volatility can be high and pre-market signals are often noisy.[5]
For traders watching the on-chain side, the main catalysts are simple: official match completion, any draw or retirement notice, and whether the event slips past the seven-day settlement window. Because the market settles in USDC, the practical risk is not the tennis score alone but the integrity of the event feed and timing confirmation; if the scoreboards update late or the match is abandoned after starting, the contract terms become decisive. There is no obvious BTC or ETH link in the fixture itself, so any crypto beta is more likely to come from broader market conditions affecting liquidity and funding rather than from a tennis-specific macro driver.
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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