Lions vs. Bengals

Platform comparison

Market context

The Detroit Lions travel to Cincinnati to face the Bengals on 13 August at 7:00 PM ET in a preseason matchup. Polymarket currently prices Lions victory at 14%, meaning the crowd assigns an 86% implied probability to a Bengals win. On-chain, this contract settles via conditional tokens on Polygon, with USDC collateral backing both outcomes. The settlement window closes at 23:00 UTC on the scheduled date; any postponement extends the market until completion, whilst a cancelled game or tie triggers a 50-50 split resolution.

Preseason NFL contests carry structural unpredictability that distinguishes them from regular-season play. Historically, home-field advantage in August exhibitions proves less decisive than in competitive weeks, with teams rotating rosters heavily and prioritising player development over tactical execution. The Bengals' recent preseason record and roster depth relative to Detroit's will influence the probability, though neither team typically deploys full starting lineups. Recent NFL preseason outcomes show win-probability gaps narrow considerably when comparing Vegas spreads to actual results, suggesting the 86% Bengals lean may reflect crowd overconfidence in home advantage.

Traders should monitor injury reports through 12 August, particularly regarding key offensive or defensive starters either team might field. Coaching decisions on starter rotation—announced typically 48 hours before kickoff—materially shift game flow. Weather conditions at Paycor Stadium and any late-breaking roster moves will factor into final positioning. The settlement mechanism's tie-resolution clause (50-50 payout) remains unlikely but technically possible, creating a tail risk for both sides of the contract.

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.

FAQ

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.

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.

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.

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.