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 |
|---|---|
| O/U 0.5 | 100% |
| Los Angeles Galaxy O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| Los Angeles Galaxy 2nd Half O/U 0.5 | 100% |
| Los Angeles Galaxy (-1.5) | 0% |
| San Jose Earthquakes (-1.5) | 0% |
| Los Angeles Galaxy (-2.5) | 0% |
| San Jose Earthquakes (-2.5) | 0% |
| O/U 1.5 | 0% |
| O/U 2.5 | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 0.5 | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Los Angeles Galaxy O/U 1.5 | 0% |
| Los Angeles Galaxy O/U 2.5 | 0% |
| San Jose Earthquakes O/U 0.5 | 0% |
| San Jose Earthquakes O/U 1.5 | 0% |
| San Jose Earthquakes O/U 2.5 | 0% |
| Los Angeles Galaxy 1st Half O/U 0.5 | 0% |
| Los Angeles Galaxy 1st Half O/U 1.5 | 0% |
| San Jose Earthquakes 1st Half O/U 0.5 | 0% |
| San Jose Earthquakes 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Los Angeles Galaxy 2nd Half O/U 1.5 | 0% |
| San Jose Earthquakes 2nd Half O/U 0.5 | 0% |
| San Jose Earthquakes 2nd Half O/U 1.5 | 0% |
Market context
The Los Angeles Galaxy will face the San Jose Earthquakes in an MLS regular-season fixture on 19 August at 10:30 PM ET, with settlement occurring via USDC on the platform's on-chain infrastructure by 20 August at 02:30 UTC. The current 0% implied probability reflects either minimal liquidity in the "More Markets" category or a technical condition where secondary betting lines (goal-scorer props, corner counts, or card markets) have not yet attracted meaningful volume relative to the primary match outcome contracts.
Historical precedent suggests that MLS secondary markets often remain illiquid until 48–72 hours before kickoff, particularly for mid-table fixtures without playoff implications. The Galaxy and Earthquakes occupy mid-table positions in the Western Conference standings; neither side carries the draw of a top-seeded franchise, which typically correlates with lower on-chain trading activity. Comparable August fixtures from prior seasons show that 0% probabilities in niche MLS props often reflect absence of initial price discovery rather than genuine market consensus. Once early traders establish reference prices, funding rates and order-book depth tend to normalise rapidly.
Traders should monitor team news releases and official MLS communications for late injury confirmations or lineup changes, which can shift secondary-market valuations substantially. Recent fixture congestion in the MLS schedule (ESPN, 2026) may affect squad rotation decisions. The settlement window's tight 4-hour post-match closure means that USDC payout execution depends on reliable score confirmation; any official dispute or VAR review delays could compress the settlement timeline. Spot liquidity in USDC pairs on major exchanges remains stable, so funding-rate volatility is unlikely to impede settlement mechanics.
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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