Lions vs. Bengals

Platform comparison

Market context

The Lions and Bengals are set for a preseason meeting in Cincinnati, with the market resolving to the straight-up winner, or 50-50 only if the game is cancelled or finishes tied without a make-up. Bookmakers have treated Cincinnati as the clear favourite: recent prices clustered around Bengals -6.5 to -7 and Bengals moneyline roughly -245 to -300, while Detroit has traded around +220 to +251, implying a Lions win probability in the high-20s to low-30s rather than the 21% crowd read currently shown here.[2][4][8][13]

For a programmatic trader, the main comparison is whether 21% leaves enough margin versus the live sports and market consensus feeds. That gap is modest in a preseason game, where line-ups can shift quickly, and it is common to see prediction-market prices move sharply on late scratches, rest announcements, or any sign that a team is treating the game as more than a brief exhibition. Recent matchup pages also show the market has been anchored to a low-total, relatively conservative scoring outlook, which tends to compress upset probability unless a depth-chart surprise hits close to kickoff.[1][2][11][17]

The practical catalysts to watch are roster and participation reports, the final inactive lists, and any schedule change that could push settlement past the 2026-08-13 23:00Z window. Because the market stays open if the game is postponed, automation should keep polling official team and league status feeds right up to start time, then switch to execution logic that reacts only if the game is completed, cancelled, or ends in a tie. That matters most here because the current price is close enough to external odds that a bot relying on stale inputs could be left with a poor fill on a late news spike.[1][2][15]

Sources: 1 · 2 · 3 · 4 · 5

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 Kalshi Fees, 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.

FAQ

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 Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.