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Broncos vs. Cardinals: O/U 42.5

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KalshiPolymarket Closes Oct 25, 2026
MarketMaster fair value55¢ vs live 54¢ on Kalshi
1.5% against the midpoint, 1.0% against the 54¢ ask you would actually pay, -0.8% after the 1.74¢ taker fee.
No edge after fees
Trade on Kalshi ↗
LIVE PRICES — YES
KalshiBEST YES PRICETrade ↗
54¢ last
BidAsk
YES53¢54¢
NO46¢47¢
$3,385 volume
PolymarketTrade ↗
56¢ last
BidAsk
YES51¢52¢
NO48¢49¢
$9,389 volume
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Cross-venue spread 2.0¢· active arbitrage window
CROSS-VENUE ARBITRAGE

Buy YES on Polymarket and NO on Kalshi — total cost 99¢ per $1 payout, locking +1.0¢ per contract before fees.

30-DAY PRICE HISTORY
HOW THIS RESOLVES

Kalshi — primary rule

If Denver and Arizona collectively score more than 42.5 points in the Denver vs Arizona Pro Football game originally scheduled for Oct 25, 2026, then the market resolves to Yes.

Polymarket — resolution criteria

In the upcoming NFL game, scheduled for October 25 at 4:05 PM ET: This market will resolve to "Over" if the Broncos and Cardinals combine to score 43 or more points in this game. If the combined total is less than 43, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50.

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STATS
Cross-venue spread2.0¢
Kalshi last54¢
Polymarket last56¢
Model fair value55¢
Model confidence31%
Venues2
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The same question at a different strike, deadline or outcome — related, not the same contract. Prices are the latest YES.