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 |
|---|---|
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer | 100% |
| Completed Match | 100% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 2 Winner | 100% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 1 O/U 8.5 | 100% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 1 Winner | 100% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set Handicap +/-1.5 | 100% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Match O/U 21.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 2 O/U 8.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Total Sets: O/U 2.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Match O/U 22.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 2 O/U 9.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Match O/U 23.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 1 O/U 9.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set Handicap +/-1.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 2 O/U 10.5 | 0% |
| Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer Set 1 O/U 10.5 | 0% |
Market context
The ATP Challenger event in Quebec City will feature a first-round matchup between Dutch player Jesper de Jong and Danish competitor Nicolai Budkov Kjaer on 20 August 2026. De Jong, ranked outside the top 200 on the ATP circuit, has competed primarily on the Challenger tour where he has accumulated modest wins against lower-ranked opposition. Budkov Kjaer, similarly positioned in the lower rankings, brings comparable experience from European Challenger events. Both players have shown inconsistent form across 2026, with neither establishing a clear trajectory toward sustained ranking improvement.
The 100% crowd-implied probability reflects the market's assessment that this match will proceed as scheduled and reach a decisive conclusion. Historical precedent from Challenger-level tournaments suggests cancellations remain rare once draws are finalised, though weather disruptions at outdoor venues do occur. The settlement window extends seven days beyond the scheduled date, providing sufficient buffer for weather delays or logistical rescheduling without triggering a 50-50 resolution. On-chain USDC settlement will execute against verified ATP official results, with no ambiguity regarding match completion or winner determination.
Traders should monitor ATP Tour announcements for draw confirmations and any venue-related advisories in the week preceding the event. Court conditions and weather forecasts for Quebec City in late August represent the primary operational risk. Recent Challenger circuit data from platforms tracking ATP schedules shows fixture stability once published, though individual player withdrawals due to injury or scheduling conflicts can emerge at short notice. The absence of significant ranking points or prize money at stake for either player reduces incentive for strategic withdrawal, supporting the high probability assigned to match completion.
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%.
Trade Quebec City: Jesper de Jong vs Nicolai Budkov Kjaer on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →