Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) 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% |
| 1st Half O/U 0.5 | 100% |
| Cagliari Calcio O/U 0.5 | 100% |
| Cagliari Calcio 1st Half O/U 0.5 | 100% |
| Cagliari Calcio (-1.5) | 1% |
| O/U 1.5 | 1% |
| Both Teams to Score | 1% |
| Cagliari Calcio O/U 1.5 | 1% |
| SS Arezzo O/U 0.5 | 1% |
| Both Teams to Score in Second Half | 1% |
| 2nd Half O/U 0.5 | 1% |
| 2nd Half O/U 1.5 | 1% |
| 2nd Half O/U 2.5 | 1% |
| Cagliari Calcio 2nd Half O/U 0.5 | 1% |
| Cagliari Calcio 2nd Half O/U 1.5 | 1% |
| SS Arezzo 2nd Half O/U 0.5 | 1% |
| SS Arezzo 2nd Half O/U 1.5 | 1% |
| SS Arezzo (-1.5) | 0% |
| Cagliari Calcio (-2.5) | 0% |
| SS Arezzo (-2.5) | 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 in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Cagliari Calcio O/U 2.5 | 0% |
| SS Arezzo O/U 1.5 | 0% |
| SS Arezzo O/U 2.5 | 0% |
| Cagliari Calcio 1st Half O/U 1.5 | 0% |
| SS Arezzo 1st Half O/U 0.5 | 0% |
| SS Arezzo 1st Half O/U 1.5 | 0% |
Market context
Cagliari Calcio will face SS Arezzo in the Coppa Italia on 14 August at 12:30 PM ET, with settlement occurring at 16:30 UTC the same day. The 1% implied probability suggests traders view additional markets materialising for this fixture as highly unlikely, reflecting either confidence in current market depth or expectations that the match itself may not proceed as scheduled.
Coppa Italia early-round matches involving lower-division sides have historically generated limited derivative market activity compared to Serie A fixtures. Arezzo's presence in Serie C (third tier) typically constrains institutional interest in ancillary betting products. However, fixture cancellations or postponements in Italian domestic cups remain uncommon absent extraordinary circumstances—weather disruptions or administrative issues would be the primary vectors for market non-settlement. The settlement window's tight 4-hour window post-kickoff suggests the market operator expects rapid confirmation of final match details.
Recent Serie C scheduling has proceeded without major disruptions this summer. Traders monitoring this market should watch for any official announcements from Lega Calcio or the clubs regarding venue changes, squad availability issues, or administrative complications in the 48 hours preceding the fixture. Fixture confirmations typically arrive 72 hours in advance. The low probability may also reflect that "more markets" requires explicit operator decision-making rather than automatic market generation—a procedural rather than event-dependent factor that remains within operator discretion through the settlement window.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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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