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NFL · Fixtures & Results

Kansas City Chiefs at Seattle Seahawks

NFL 2026 · Week 7 · · Lumen Field

Kansas City Chiefs at Seattle Seahawks, Week 7 of the 2026 season: Seattle Seahawks won 20–3.

Prediction made · Elo model

Result

Kansas City Chiefs 3–20 Seattle Seahawks

Closing line SEA −3, total 43.5 (stayed under). Seattle Seahawks covered.

What the model predicted beforehand

The model gave Seattle Seahawks a 61.9% chance of winning and Kansas City Chiefs 38.1%, with a predicted margin of SEA by 3.4. The betting market had it SEA 56%. The model’s favourite won.

OutcomeThis modelBetting market
Seattle Seahawks win61.9%56.4%
Kansas City Chiefs win38.1%43.6%
MarginSEA by 3.4SEA −3
Total points–43.5

The model is a margin-based Elo rating walked forward over every game since 2002, with home advantage; ties are rare enough not to be priced. Betting market: the moneyline with the bookmaker’s margin removed, and the spread as quoted (favourite first).

How it might finish: winning margin
Chance of each winning margin
Kansas City Chiefs by 15+8%
Kansas City Chiefs by 8–149%
Kansas City Chiefs by 4–711%
Kansas City Chiefs by 1–312%
Tie<1%
Seattle Seahawks by 1–313%
Seattle Seahawks by 4–714%
Seattle Seahawks by 8–1414%
Seattle Seahawks by 15+18%

Most likely exact margins: SEA by 3 (8.5%), KC by 3 (7.6%) and SEA by 7 (5.5%). NFL scores come in 3s and 7s, so margins of 3, 7, 10 and 14 come up far more often than their neighbours.

On this curve Seattle Seahawks were 46.5% to cover the line (SEA −3): to win by more than 3.

The curve is a normal spread of results around the model’s expected margin (Stern, 1991), reweighted for the NFL’s key numbers. Its shape was fitted on 2002–2023 and checked on 2024, where it beat a plain bell curve. Because it is built from the expected margin alone, its win chances can differ by a few points from the Elo figure above, which is the one the Model Lab scores.