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 |
|---|---|
| Mantova 1911 (-1.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| Mantova 1911 O/U 0.5 | 100% |
| Mantova 1911 O/U 1.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| Mantova 1911 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 90% |
| Mantova 1911 2nd Half O/U 1.5 | 90% |
| Both Teams to Score in Second Half | 10% |
| 2nd Half O/U 2.5 | 10% |
| SS Lazio 2nd Half O/U 0.5 | 10% |
| SS Lazio 2nd Half O/U 1.5 | 10% |
| SS Lazio (-1.5) | 0% |
| SS Lazio (-2.5) | 0% |
| Mantova 1911 (-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 | 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% |
| SS Lazio O/U 0.5 | 0% |
| SS Lazio O/U 1.5 | 0% |
| SS Lazio O/U 2.5 | 0% |
| Mantova 1911 O/U 2.5 | 0% |
| SS Lazio 1st Half O/U 0.5 | 0% |
| SS Lazio 1st Half O/U 1.5 | 0% |
| Mantova 1911 1st Half O/U 0.5 | 0% |
| Mantova 1911 1st Half O/U 1.5 | 0% |
Market context
SS Lazio will face Mantova 1911 in the Coppa Italia on 16 August at 3:15 PM ET, with settlement occurring at 19:15 UTC that same day. The fixture represents an early-round domestic cup encounter in Italian football's knockout competition. Lazio, a Serie A side, enters as heavy favourites against Mantova, a lower-division club competing in Serie C. The 0% implied probability on additional markets suggests traders are either absent from this particular contract or perceive negligible liquidity depth beyond primary match outcomes.
Historical Coppa Italia results between mismatched divisions show consistent patterns: top-flight sides advance in roughly 85–90% of such encounters, though upsets occur frequently enough to merit pricing. Mantova's last competitive appearance against Serie A opposition came in 2022, when they lost 4–1 to Reggina. Lazio's recent cup form has been solid, though they've occasionally rotated squads in early rounds. The current 0% reading likely reflects sparse order flow rather than genuine market consensus; comparable lower-tier Coppa Italia matches on prediction platforms typically settle with 10–25% YES probability when the underdog is priced fairly.
Traders should monitor team news releases through 15 August, particularly injury updates affecting Lazio's squad depth. USDC settlement at the scheduled time depends on reliable result confirmation from official Serie A channels. Funding rates on related football derivatives remain stable, indicating no significant macro crypto volatility spillover affecting this niche market segment. The settlement window's precision—ending minutes after full-time—requires traders to confirm fixture timing against official Coppa Italia schedules, as scheduling adjustments occasionally occur.
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.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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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