Arizona Cardinals vs Seattle Seahawks
Sunday, November 8, 2026 · Lumen Field, Seattle, WA
Quick Answer
As of August 1, 2026, our model favors the Seahawks by 11.5 in Arizona Cardinals vs Seattle Seahawks, NFL Week 9 2026 — 80% to win, and the 1st-widest model gap in Week 9. Kalshi has not listed KXNFLGAME-26NOV08ARISEA yet, so there is no price to compare: when it opens, Seahawks at 75c or below (or Cardinals at 15c or below) is where the model would take a position.
Cardinals
20%
model win prob
Seahawks
80%
model win prob
KXNFLGAME-26NOV08ARISEAhasn't opened yet, so there is no price to compare. When it does, the model buys the Seahawks at 75c or below, or the Cardinals at 15c or below — a five-point threshold either way. The market column fills in automatically.
Power-rating comparison
Why the model has the Seahawks by 11.5
The model does not think this one is close. The Seahawks rate 3rd of 32 at +5.2, the Cardinals 30th at -3.6, and once home field is applied the line lands on the Seahawks by 11.5 — 80% to win. That is the 1st-widest gap among the 15 games on the Week 9 board. A preseason rating spread this size is not a promise: it says nothing about turnovers, health, or a defense that shows up different than last year. What it does say is that the Cardinals need the price to be wrong, not the matchup.
The sharpest unit gap in the game runs one way: the Seahawks offense grades +2.3 (7th of 32) against a Cardinals defense at -2.9 (29th) — 5.1 points of separation on our scale, and the single biggest reason the line sits where it does. Going the other direction, the Cardinals offense (-0.7, 23rd) meets the Seahawks defense (+1.8, 4th), a 2.4-point gap. Special teams adds to it: the Seahawks grade +1.2, 2nd in the league, against -0.1 (30th) on the other side — close to a point of hidden margin.
Zoom out to the full season and the model projects the Seahawks at 10.8 wins (favored in 16 of 17) and the Cardinals at 6.4 (favored in 3) — 4.4 wins apart across the year. By win probability this is the 17th-hardest game on the Seahawks' schedule and the 2nd-hardest on the Cardinals'. It is the softest spot on the Seahawks' entire schedule.
On the calendar, the Cardinals are on 7 days and the Seahawks are on 6 days. The Seahawks are 3 games into a home stand. None of that is in the model line — our rating model prices teams and home field, nothing else — so rest and travel are yours to weigh on top of the number, not inside it.
On the standings side, NFC West games are the ones that decide the tiebreakers. Head-to-head record is the first tiebreaker between two teams in the same division, and division record is the next — so the value of this result is not just the win column. They already played in Week 2, so a season sweep is on the table here on the NFC West race.
A note on confidence this high: the model has only been this sure 139 times in 3266 walk-forward games from 2013-2024. Teams it put in the 75-80% range won 74% of those. So a 80% Seahawks number is well supported by the record, and still loses about 26 times in 100 — which is exactly why the position is a price question, not a certainty question.
There is no market to compare against yet — Kalshi has not listed KXNFLGAME-26NOV08ARISEA — and we are not going to invent a price. What the model will say when it opens: Seahawks YES is only worth buying at 75c or below, which is a demanding ask on a side the model already has at 80%. The likelier position on a game this lopsided is the Cardinals at 15c or below, where the payoff does the work. Week 1's KXNFLGAME contracts opened in May 2026 and the rest of the slate lists as the season gets closer; this page picks up the price automatically when it does.
Full division picture on the NFC West hub.
Prediction markets are not sportsbooks — you trade a contract that settles at $1 or $0, not a wager against a house line. Informational only; trade responsibly.
Cardinals vs Seahawks — frequently asked
Who is favored in Cardinals vs Seahawks in Week 9?
Our power-rating model favors the Seahawks by 11.5 points, a 80% win probability over the Cardinals. The Seahawks rate 3rd of 32 (+5.2) and the Cardinals 30th (-3.6); Kalshi has not listed KXNFLGAME-26NOV08ARISEA yet, so the model line is the only number on the board.
What would it take for the Cardinals to win?
The 11.5-point line comes from a 8.8-point rating gap, and a single-game margin has roughly a 13.5-point standard deviation around it — which is why the Cardinals still project at 20% rather than zero. Their best structural path is the Cardinals defense (-2.9, 29th of 32) holding up. Ratings do not price injuries or turnover luck, which is where most upsets actually come from.
How do you take a position on Cardinals vs Seahawks?
The contract will be KXNFLGAME-26NOV08ARISEA on Kalshi, a CFTC-regulated exchange open to traders in all 50 states. It has not opened yet; when it does, the model would take the Seahawks at 75c or below, or the Cardinals at 15c or below. There is no point spread — you buy a yes or no contract on a team and it settles at $1 or $0.
When and where do the Seahawks host the Cardinals?
Arizona Cardinals visit the Seattle Seahawks on Sunday, November 8, 2026 — a Sunday game in NFL Week 9, at Lumen Field, Seattle, WA.
What does the model project for the Seahawks and Cardinals this season?
Across all 17 games the model projects the Seahawks at 10.8 wins (favored in 16) and the Cardinals at 6.4 (favored in 3). This game ranks 17th-hardest on the Seahawks' schedule and 2nd-hardest on the Cardinals', by model win probability.
How often does the model win when it is 80% on a team like the Seahawks?
74% of the time. Over 3266 walk-forward games from 2013-2024 — trained only on prior seasons, no market line as an input — the model put a team in the 75-80% range 139 times, and those teams won 74% of them. The Seahawks at 80% over the Cardinals sit in that band, off a 11.5-point model line. Straight-up across all 3266 graded games the model picked winners at 59.6%, with a Brier score of 0.236 against 0.25 for a coin flip.
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The first meeting
These two already played once in 2026, back in Week 2. Division games are the pairings the model gets two swings at, and the second line usually moves off what the first one showed. Cardinals–Seahawks, Week 2 →
More Week 9 matchups
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