Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
75% | 25% | 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 |
|---|---|
| Spread -3.5 | 75% |
| Spread -4.5 | 72% |
| Spread -6.5 | 68% |
| Bengals O/U 22.5 | 50% |
| Lions O/U 15.5 | 50% |
| Lions O/U 16.5 | 50% |
| Lions O/U 14.5 | 50% |
| Bengals O/U 23.5 | 50% |
| Spread -7.5 | 45% |
| Lions vs. Bengals | 13% |
| O/U 37.5 | 10% |
| O/U 38.5 | 9% |
| 1H O/U 20.5 | 1% |
| 1H Spread -6.5 | 1% |
| 1H Moneyline | 1% |
Market context
The Detroit Lions face the Cincinnati Bengals on 13 August at 7:00 PM ET in what is scheduled as a preseason NFL encounter. Polymarket currently prices Lions victory at 13% implied probability, with the contract denominated in USDC on Polygon. This pricing reflects the conditional token structure underlying the market: traders holding YES tokens receive full settlement value only if Detroit wins outright, whilst Bengals backers hold the complementary position. The settlement window closes at 23:00 UTC on the scheduled date, with provisions for postponement extending the market's duration if necessary.
Preseason NFL matchups carry historical volatility in prediction markets owing to roster uncertainty and variable coaching priorities. The Lions and Bengals occupy different divisional standings and playoff trajectories heading into the 2024 season, which typically influences how much each franchise invests in preseason performance. Recent preseason contests have shown that markets often misprice teams with stronger regular-season records when those squads rest key players; conversely, rebuilding rosters sometimes outperform expectations in August fixtures. The 13% Lions probability suggests market participants view Cincinnati as the favoured side, though preseason lines historically exhibit wider confidence intervals than regular-season equivalents.
Traders should monitor injury reports released in the days before 13 August, particularly regarding starting quarterbacks and offensive skill positions for both sides. Coaching announcements regarding player rotation strategy—whether either franchise intends to rest starters—will directly influence win probability. Weather conditions at the scheduled venue and any last-minute roster moves could shift the conditional token valuations on Polygon before settlement, as preseason games remain sensitive to deployment decisions made within 48 hours of kickoff.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $195K.
Methodology
This page reviews Lions vs. Bengals 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 Kalshi UK, which mirrors the Polymarket order book at 0% fees.
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
- 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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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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