Task Enterprises presentsNFL Intelligence

2023 · CON

Final

Lions

Detroit

QB Jared Goff

31·34

49ers

San Francisco

QB Brock Purdy

Levi's Stadium · outdoors · grass · 69°F · wind 5mph

Closing spread

SF -7.5

Total

52.5

Model margin

+4.1est.

SF perspective

Push chance

None

half-point line — cannot push

Win probability

  • 49ers
  • Lions

How each play moved the game.

49ers winsLions wins

Matchup

Where the edges are

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

Lionsedge map49ers
  • +0.058EPA / play+0.179
  • 45.9%Success rate51.6%
  • +0.110EPA / dropback+0.298
  • -0.014EPA / rush+0.034
  • 11.2%Explosive rate13.8%
  • +1.34CPOE+4.51
  • 42.4%Third-down rate48.1%
  • 65.2%Red-zone TD rate70.4%
  • 2.29Points / drive2.69
  • 1.9%Turnover rate1.7%

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 10–2 since 1999

Meetings average 48.8 points. SF are 4-7-1 ATS in the series.

Previous meetings
SeasonMatchupScoreWinner
2024 · W17DET @ SF4034DET
2021 · W1SF @ DET4133SF
2018 · W2DET @ SF2730SF
2015 · W16SF @ DET1732DET
2012 · W2DET @ SF1927SF
2011 · W6SF @ DET2519SF
2009 · W16DET @ SF620SF
2008 · W3DET @ SF1331SF

Box score

Individual performances

Lions

Passing

PlayerC/AttYdsTDINT
Jared Goff25/4127310

Rushing

PlayerCarYdsAvgTD
David Montgomery15936.21
Jahmyr Gibbs12453.81
Jameson Williams14242.01
Amon-Ra St. Brown122.00

49ers

Passing

PlayerC/AttYdsTDINT
Brock Purdy20/3126711

Rushing

PlayerCarYdsAvgTD
Christian McCaffrey20904.52
Brock Purdy5489.60
Deebo Samuel Sr.372.30
Elijah Mitchell471.81

Receiving

PlayerRecTgtYdsTD
Deebo Samuel Sr.89890
Brandon Aiyuk38681
Christian McCaffrey45420
George Kittle23270
Jauan Jennings1280

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 +7.53.7%6.7%7.5%3.2%4.9%3.2%2.9%

Positive margins favour 49ers; negative favour Lions.

Half-point at risk

2.16%

outcomes that flip if the line moves 0.5

Model home win

59.9%

Expected total

47.3est.

Model

Where the number comes from

Each component is additive, in points of expected margin.

  • Team ratings (opponent-adjusted EPA)+2.28
  • Home-field advantage+1.71
  • Quarterback adjustment0.00
  • Rest differential+0.08
  • Expected margin+4.07