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 |
|---|---|
| Philadelphia Union (-1.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| Both Teams to Score | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| Philadelphia Union O/U 0.5 | 100% |
| Philadelphia Union O/U 1.5 | 100% |
| Philadelphia Union O/U 2.5 | 100% |
| Club Necaxa O/U 0.5 | 100% |
| Philadelphia Union 1st Half O/U 0.5 | 100% |
| Philadelphia Union 1st Half O/U 1.5 | 100% |
| Both Teams to Score in Second Half | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| Philadelphia Union 2nd Half O/U 0.5 | 100% |
| Club Necaxa 2nd Half O/U 0.5 | 100% |
| Club Necaxa (-1.5) | 0% |
| Philadelphia Union (-2.5) | 0% |
| Club Necaxa (-2.5) | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 2.5 | 0% |
| Club Necaxa O/U 1.5 | 0% |
| Club Necaxa O/U 2.5 | 0% |
| Club Necaxa 1st Half O/U 0.5 | 0% |
| Club Necaxa 1st Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Philadelphia Union 2nd Half O/U 1.5 | 0% |
| Club Necaxa 2nd Half O/U 1.5 | 0% |
Market context
Philadelphia Union faced Club Necaxa in a Leagues Cup tie at Subaru Park, and the broader “more markets” set sat around that match rather than a single full-time result. The crowd-implied 97% YES price points to an assumption that at least one auxiliary market would resolve in line with the event template, but the more useful signal is that the match itself was already being treated as a strong Philadelphia lean across prediction venues, with home-win probabilities clustered around the high-50s to low-60s. [3][6][8][17]
Comparable market snapshots show why traders do not read 97% as a pure football scoreline forecast. Polymarket listed Philadelphia at 60.5% on the moneyline, while Robinhood’s market showed Philadelphia 61¢ versus Necaxa 21¢, and Kalshi’s first-team-to-score market still gave Philadelphia only 65%, implying plenty of uncertainty in the exact path even when the home side is favoured. External model-based previews also leaned to Philadelphia, but not overwhelmingly, with estimates near 56.5% to 60% and scorelines such as 2-1, 2-0, or 1-1 recurring across publishers. [3][5][8][11][12]
For traders, the main catalysts are lineup confirmation, any last-minute injury or rotation news, and whether the Leagues Cup format changes the incentive structure for in-match markets before kick-off. Because settlement is in USDC, the contract tracks event resolution rather than sportsbook grading, so late administrative changes, postponement risk, or market-rule specifics matter more than live score noise once the game starts. If the position is being hedged rather than held outright, BTC and ETH conditions can still matter indirectly through broader on-chain risk appetite, but the immediate driver here is venue, team news, and pre-match pricing into the 7:30 PM ET start. [7][11][13]
Methodology
This page reads Philadelphia Union vs. Club Necaxa - More Markets 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%.
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