Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
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% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| Sport Lisboa e Benfica O/U 0.5 | 100% |
| Sport Lisboa e Benfica O/U 1.5 | 100% |
| Sport Lisboa e Benfica 1st Half O/U 1.5 | 100% |
| O/U 2.5 | 91% |
| Sport Lisboa e Benfica O/U 2.5 | 91% |
| Sport Lisboa e Benfica (-1.5) | 89% |
| O/U 3.5 | 68% |
| Sport Lisboa e Benfica (-2.5) | 67% |
| 1st Half O/U 2.5 | 64% |
| Both Teams to Score in Second Half | 63% |
| 2nd Half O/U 0.5 | 61% |
| 2nd Half O/U 1.5 | 61% |
| 2nd Half O/U 2.5 | 61% |
| Sport Lisboa e Benfica 1st Half O/U 0.5 | 58% |
| Both Teams to Score in First Half | 53% |
| Casa Pia AC 1st Half O/U 0.5 | 50% |
| Casa Pia AC 1st Half O/U 1.5 | 50% |
| Casa Pia AC 2nd Half O/U 0.5 | 50% |
| Casa Pia AC 2nd Half O/U 1.5 | 50% |
| Sport Lisboa e Benfica 2nd Half O/U 0.5 | 50% |
| Sport Lisboa e Benfica 2nd Half O/U 1.5 | 50% |
| Both Teams to Score | 44% |
| Casa Pia AC O/U 0.5 | 44% |
| O/U 4.5 | 42% |
| Casa Pia AC O/U 1.5 | 36% |
| Casa Pia AC O/U 2.5 | 23% |
| O/U 5.5 | 21% |
| Casa Pia AC (-1.5) | 0% |
| Casa Pia AC (-2.5) | 0% |
Market context
Casa Pia AC will face Sport Lisboa e Benfica in the Primeira Liga on 16 August at 3:30 PM ET, with settlement contingent on additional market offerings becoming available for this fixture. The 0% probability reflects Polymarket's current pricing on USDC/Polygon conditional tokens, indicating either minimal trader conviction that supplementary markets will materialise or genuine uncertainty about what derivative contracts the platform will list around this match. Settlement hinges on whether Polymarket's market creation mechanisms activate secondary betting opportunities beyond standard match outcomes—a technical and operational question rather than a sporting one.
Benfica's historical dominance in Portuguese football provides context for how traders typically value their fixtures. The Lisbon club has won 38 league titles and consistently commands shorter odds in most market structures. Casa Pia, promoted to the top flight in 2022, remains a relative newcomer to Primeira Liga competition. Previous seasons show Benfica fixtures often attract multiple derivative markets—goal-scorer props, corner totals, and card counts—though availability varies by week and platform capacity.
Traders should monitor Polymarket's official market calendar and Casa Pia's injury reports in the week preceding 16 August. Recent fixture congestion in Portuguese football, particularly around European competition dates, occasionally constrains which secondary markets launch. The settlement window closes at 19:15 UTC on 17 August, allowing roughly 24 hours post-match for market resolution. Platform liquidity and creator activity will determine whether this contract ever moves from its current zero probability.
Methodology
This page reviews Casa Pia AC vs. Sport Lisboa e Benfica - More Markets across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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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