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NFL · Fixtures & Results

Chicago Bears at Green Bay Packers

NFL 2026 · Week 5 · · Lambeau Field · division game

Chicago Bears at Green Bay Packers, Week 5 of the 2026 season: Green Bay Packers won 31–7.

Prediction made · Elo model

Result

Chicago Bears 7–31 Green Bay Packers

Closing line CHI −1.5, total 46.5 (stayed under). Green Bay Packers covered.

What the model predicted beforehand

The model gave Green Bay Packers a 42.9% chance of winning and Chicago Bears 57.1%, with a predicted margin of CHI by 2.0. The betting market had it CHI 53%. The underdog won.

OutcomeThis modelBetting market
Green Bay Packers win42.9%46.8%
Chicago Bears win57.1%53.3%
MarginCHI by 2.0CHI −1.5
Total points–46.5

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
Chicago Bears by 15+16%
Chicago Bears by 8–1413%
Chicago Bears by 4–714%
Chicago Bears by 1–313%
Tie<1%
Green Bay Packers by 1–312%
Green Bay Packers by 4–712%
Green Bay Packers by 8–1410%
Green Bay Packers by 15+9%

Most likely exact margins: CHI by 3 (8.5%), GB by 3 (7.9%) and CHI by 7 (5.3%). 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 Chicago Bears were 53.4% to cover the line (CHI −1.5): to win by more than 1.5.

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.