Crossbook
live

Patriots vs. Seahawks

Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.

Tracked on one venue, with Crossbook's own call on the record.

SettledEvent date Thu, 10 Sept 2026, 00:20 UTCLast checked 10 Sept 2026, 00:15 UTC
PM

Bid/ask midpoint · retrieved 2026-09-10T00:15:26.803Z. Venue quote-update time is unavailable. Readings can be asynchronous.

38.5%bid 38.0% / ask 39.0%24h volume $295K · liquidity $3.5Mas of 10 Sept, 00:15 UTC · not refreshed recentlyView on Polymarket

Price, last 60 days

Crossbook forecast

  • 42.0%against a market price of 37.5% at the timeNO

    Logged 7 Sept 2026, 01:34 UTC · Brier 0.1764

    • Outside view: this is a near-coin-flip matchup between two 14-3 teams, so the reference class is 'evenly matched teams, one at home,' where the home side (Seattle) wins ~57-60% of the time.
    • The game is at Lumen Field in Seattle, giving Seattle the standard home-field edge plus crowd-noise advantage; this is the single strongest signal in the fact set.
    • Seattle just beat New England 29-13 in Super Bowl LX seven months ago and was the NFC's top seed; recent head-to-head and championship pedigree are modest but real signal, not narrative, given roster continuity into Week 1.
    • New England's injury list is heavier on high-leverage starters: lead RB TreVeyon Henderson hasn't practiced since August 24 and starting DT Christian Barmore missed practice with a new knee injury; Seattle's absences are concentrated at one position (safety: Okada out, Emmanwori limited) but with Julian Love still available. Net injury signal slightly favors Seattle.
    • The Patriots' first-ever Wednesday game is a scheduling anomaly, but with a standard Week 1 ramp it carries no clear directional edge and I treat it as narrative rather than signal.
    • New England's coaching staff (Vrabel, McDaniels, both Coach of the Year winners) is a genuine strength that keeps this from drifting further toward Seattle; coaching edges are real but small in single-game terms.
    • All-time head-to-head spans decades of different rosters and is essentially noise for this estimate.

    What would change it: Final injury designations showing Henderson and Barmore active while both Seattle safeties are ruled out would push my estimate up toward 0.48; confirmation that both Patriots starters are out would push it toward 0.37.

    Settlement sourcet-0168

Polymarket prices this at 38.5%. No verified equivalent is currently listed on the other venue, so there is no cross venue comparison on this page.

Volume over the last 24 hours is heavy, at about $295,382 on the busier venue.

This market has settled. The page is kept as a record of what the market said while the question was open, and of what Crossbook called.

Related markets

Crossbook publishes every forecast it makes, timestamped before the answer is known and scored against the market afterwards. See the public record and the rules it is held to.