2025 · Week 17

Final

Bears

Chicago

QB Caleb Williams

38·42

49ers

San Francisco

QB Brock Purdy

Levi's Stadium · outdoors · grass · 53°F · wind 5mph

Closing spread

SF -3.5

Total

51.5

Model margin

+1.8est.

SF perspective

Push chance

None

half-point line — cannot push

Win probability

  • 49ers
  • Bears

How each play moved the game.

49ers winsBears wins

Matchup

Where the edges are

Season-long league percentiles for both sides, mirrored. The saturated side of a lopsided row holds the edge.

Bearsedge map49ers
  • +0.076EPA / play+0.091
  • 45.7%Success rate48.5%
  • +0.122EPA / dropback+0.175
  • +0.007EPA / rush-0.033
  • 10.1%Explosive rate8.2%
  • -3.48CPOE+5.72
  • 42.0%Third-down rate50.4%
  • 66.8%Red-zone TD rate65.6%
  • 2.32Points / drive2.48
  • 1.0%Turnover rate2.0%

Bar length is league percentile, already oriented so longer is better. The saturated side of a lopsided row holds the edge; rows within ~12 points are washed as even.

The rivalry

SF lead 9–8 since 1999

SF have won 2 straight. Meetings average 41.3 points. SF are 10-7 ATS in the series.

Previous meetings
SeasonMatchupScoreWinner
2024 · W14CHI @ SF1338SF
2022 · W1SF @ CHI1019CHI
2021 · W8SF @ CHI3322SF
2018 · W16CHI @ SF149CHI
2017 · W13SF @ CHI1514SF
2016 · W13SF @ CHI626CHI
2015 · W13SF @ CHI2620SF
2014 · W2CHI @ SF2820CHI

Box score

Individual performances

Bears

Passing

PlayerC/AttYdsTDINT
Caleb Williams25/4233020

Rushing

PlayerCarYdsAvgTD
D'Andre Swift9546.02
Kyle Monangai8384.80
Caleb Williams5183.60

49ers

Passing

PlayerC/AttYdsTDINT
Brock Purdy24/3330331

Rushing

PlayerCarYdsAvgTD
Christian McCaffrey231406.11
Brock Purdy6284.72
Brian Robinson4225.50
Skyy Moore11010.00

Where this game is likely to land

  • Model
  • Smooth (normal)
  • Betting line

Probability of each final margin. Football scoring clusters — the spikes at 3 and 7 are real, and a smooth model misses them.

line +3.54.1%2.8%7.1%7.5%3.1%4.7%2.9%

Positive margins favour 49ers; negative favour Bears.

Half-point at risk

2.52%

outcomes that flip if the line moves 0.5

Model home win

53.9%

Expected total

46.4est.

Model

Where the number comes from

Each component is additive, in points of expected margin.

  • Team ratings (opponent-adjusted EPA)+0.25
  • Home-field advantage+1.71
  • Quarterback adjustment0.00
  • Rest differential-0.16
  • Expected margin+1.80