Task Enterprises presentsNFL Intelligence

2023 · Week 12 · Division

Final

49ers

San Francisco

QB Brock Purdy

31·13

Seahawks

Seattle

QB Geno Smith

Lumen Field · outdoors · fieldturf · 39°F · wind 4mph

Closing spread

SF -7

Total

43.5

Model margin

-2.1est.

SEA perspective

Push chance

4.7%est.

the line sits on a key number

Win probability

  • Seahawks
  • 49ers

How each play moved the game.

Seahawks wins49ers wins

Matchup

Where the edges are

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

49ersedge mapSeahawks
  • +0.179EPA / play+0.032
  • 51.6%Success rate44.6%
  • +0.298EPA / dropback+0.094
  • +0.034EPA / rush-0.087
  • 13.8%Explosive rate9.6%
  • +4.51CPOE+1.54
  • 48.1%Third-down rate36.3%
  • 70.4%Red-zone TD rate49.3%
  • 2.69Points / drive2.00
  • 1.7%Turnover rate1.5%

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

SEA lead 31–20 since 1999

SEA have won 2 straight. Meetings average 42.2 points. SEA are 29-21-1 ATS in the series.

Previous meetings
SeasonMatchupScoreWinner
2025 · playoffsSF @ SEA641SEA
2025 · W18SEA @ SF133SEA
2025 · W1SF @ SEA1713SF
2024 · W11SEA @ SF2017SEA
2024 · W6SF @ SEA3624SF
2023 · W14SEA @ SF1628SF
2022 · playoffsSEA @ SF2341SF
2022 · W15SF @ SEA2113SF

Box score

Individual performances

49ers

Passing

PlayerC/AttYdsTDINT
Brock Purdy21/3020911
Deebo Samuel Sr.0/1000

Rushing

PlayerCarYdsAvgTD
Christian McCaffrey191146.02
Elijah Mitchell7395.60
Deebo Samuel Sr.4153.81
Brock Purdy310.30

Seahawks

Passing

PlayerC/AttYdsTDINT
Geno Smith18/2718001

Rushing

PlayerCarYdsAvgTD
Zach Charbonnet14473.40
Geno Smith4215.30
DeeJay Dallas2105.00
Dee Eskridge11010.00

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 -73.0%4.7%3.1%7.5%7.0%2.7%4.1%

Positive margins favour Seahawks; negative favour 49ers.

Half-point at risk

4.69%

outcomes that flip if the line moves 0.5

Model home win

43.4%

Expected total

48.6est.

Model

Where the number comes from

Each component is additive, in points of expected margin.

  • Team ratings (opponent-adjusted EPA)-3.82
  • Home-field advantage+1.71
  • Quarterback adjustment0.00
  • Rest differential0.00
  • Expected margin-2.12