Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| Both Teams to Score | 100% |
| Both Teams to Score in First Half | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| 1st Half O/U 2.5 | 100% |
| Philadelphia Union O/U 0.5 | 100% |
| Inter Miami CF O/U 0.5 | 100% |
| Inter Miami CF O/U 1.5 | 100% |
| Philadelphia Union 1st Half O/U 0.5 | 100% |
| Inter Miami CF 1st Half O/U 0.5 | 100% |
| Inter Miami CF 1st Half O/U 1.5 | 100% |
| O/U 3.5 | 90% |
| Philadelphia Union O/U 1.5 | 71% |
| O/U 4.5 | 65% |
| Inter Miami CF O/U 2.5 | 62% |
| Both Teams to Score in Second Half | 51% |
| 2nd Half O/U 0.5 | 50% |
| 2nd Half O/U 1.5 | 50% |
| 2nd Half O/U 2.5 | 50% |
| Philadelphia Union 2nd Half O/U 0.5 | 50% |
| Philadelphia Union 2nd Half O/U 1.5 | 50% |
| Inter Miami CF 2nd Half O/U 0.5 | 50% |
| Inter Miami CF 2nd Half O/U 1.5 | 50% |
| O/U 5.5 | 36% |
| Philadelphia Union O/U 2.5 | 34% |
| Inter Miami CF (-1.5) | 29% |
| Inter Miami CF (-2.5) | 11% |
| Philadelphia Union (-1.5) | 6% |
| Philadelphia Union (-2.5) | 2% |
| Philadelphia Union 1st Half O/U 1.5 | 0% |
Market context
Philadelphia Union hosted Inter Miami CF on 19 August in a match that sat at the intersection of contrasting availability and recent form. Philadelphia arrived with momentum from a 3-2 win at New York City FC, while Inter Miami had just been beaten 4-1 at Nashville, a swing in level that makes a low single-digit crowd price on a broad “more markets” set look hard to justify unless the market was expecting a very narrow, event-specific outcome.[5][9]
For comparable framing, the key was not headline name value but the scale of the absences. Inter Miami were dealing with multiple missing pieces, including Rodrigo De Paul’s suspension and injuries to Germán Berterame, Tadeo Allende, Micael, Santiago Morales and Mateo Silvetti, while Philadelphia’s injury list was notably lighter by comparison.[2][3][14] In a fixture where one side can still assemble a functional XI and the other is leaning on depth, the base rate for extra market outcomes tends to sit below the implied threshold unless late team-news sharply changes the picture.
The main catalysts for traders were late line-up confirmation and any update on how Inter Miami would replace De Paul’s midfield role and compensate for the attacking absences.[2][14] The beat-reporting around the game pointed to Messi’s return being offset by those missing contributors, which made the dependency chain clear: if Miami could not stabilise possession or recover enough structure in transition, ancillary markets tied to cards, corners or goal volume would be more sensitive than a simple star-name narrative suggested.[2]
Methodology
Sports-specific comparison page for Philadelphia Union vs. Inter Miami CF - More Markets. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- 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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