Lions vs. Bengals

Platform comparison

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 fixture. The 0% implied probability on this market reflects either minimal trading activity or a technical settlement issue, as preseason games between established franchises rarely fail to occur. Sportsbooks have typically priced such matchups with Lions favoured at around −3 to −4 points, suggesting roughly 55–60% implied probability for a Detroit victory, though preseason lines carry wider margins than regular-season contests due to roster rotation and reduced betting volume.

Preseason games present distinct settlement risks compared to regular-season play. Postponements have occurred in recent years due to weather, facility issues, or medical emergencies, though outright cancellations without rescheduling remain rare in the modern NFL. The 50-50 tie resolution clause is relevant here: whilst ties are uncommon in NFL play generally, preseason games see higher rates of unconventional endings given reduced overtime protocols and coaching decisions to rest players in final moments. Historical precedent suggests that when prediction markets show extreme probabilities (0% or 100%) on established sports events, the divergence typically signals low liquidity rather than genuine certainty about outcome.

Traders should monitor official NFL communications regarding roster availability, particularly any last-minute injury announcements affecting starting lineups. Weather forecasts for the venue and any facility-related updates in the days preceding 13 August warrant attention. The settlement window closing at 23:00 UTC on 13 August allows only a narrow window post-game for resolution, so confirmation of final score should be verified against official NFL records immediately following the match conclusion.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets UK, which mirrors the Polymarket order book directly.

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

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

What are the best prediction markets for UK traders in 2026?

For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.