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: Jacob Fearnley vs Alexis Galarneau | 100% |
| Completed Match | 100% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 2 O/U 8.5 | 100% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 1 Winner | 100% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 2 Winner | 100% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set Handicap +/-1.5 | 100% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Match O/U 21.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Total Sets: O/U 2.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 1 O/U 8.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Match O/U 22.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 2 O/U 9.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 1 O/U 9.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set Handicap +/-1.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 2 O/U 10.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Match O/U 23.5 | 0% |
| Quebec City: Jacob Fearnley vs Alexis Galarneau Set 1 O/U 10.5 | 0% |
Market context
Jacob Fearnley and Alexis Galarneau are scheduled to meet in the opening round of the Quebec City ATP 250 tournament on 20 August 2026. Fearnley, a Scottish player ranked in the low-to-mid 100s, has shown steady improvement on the ATP circuit with occasional deep runs in smaller events. Galarneau, a Canadian prospect, competes primarily on the Challenger tour and holds a home advantage in Quebec City. The match carries standard ATP 250 scheduling risk: weather delays, injury withdrawals, or administrative cancellations could trigger the 50-50 resolution clause if play extends beyond seven days without completion.
The 100% YES probability reflects either incomplete market liquidity or early-stage pricing before meaningful information surfaces. Historical ATP 250 matches between players of this ranking differential show the higher-ranked player advances roughly 65–75% of the time, though home-court advantage in a Canadian event introduces volatility. Fearnley's recent form and head-to-head record against Galarneau (if any exists) should anchor baseline expectations; Galarneau's Challenger-level ranking suggests Fearnley enters as favourite, but the probability assigned here leaves no room for upset scenarios or operational friction.
Traders should monitor ATP official announcements regarding draw confirmation and any weather forecasts for Quebec City in mid-August. Injury reports or late withdrawals typically emerge 48–72 hours before tournament play. Settlement depends on match completion and a decisive winner; USDC settlement will execute once the ATP publishes official results. The seven-day grace period creates a tail risk for delayed resolution if the match is suspended mid-play, which occasionally occurs at outdoor hard-court events.
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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