2023 · Week 4 · Division

Final

Cardinals

Arizona

QB Joshua Dobbs

16·35

49ers

San Francisco

QB Brock Purdy

Levi's Stadium · outdoors · grass · 75°F · wind 9mph

Closing spread

SF -15

Total

44

Model margin

+9.3est.

SF perspective

Push chance

1.5%est.

Availability

The injury report

The official league filing for this week — game designations first, then who missed or was limited in practice.

Cardinals

49ers

Win probability

  • 49ers
  • Cardinals

How each play moved the game.

49ers winsCardinals wins

Matchup

Where the edges are

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

Cardinalsedge map49ers
  • -0.055EPA / play+0.179
  • 41.0%Success rate51.6%
  • -0.082EPA / dropback+0.298
  • -0.014EPA / rush+0.034
  • 9.3%Explosive rate13.8%
  • -2.77CPOE+4.51
  • 39.6%Third-down rate48.1%
  • 62.4%Red-zone TD rate70.4%
  • 1.88Points / drive2.69
  • 1.5%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 29–22 since 1999

SF have won 3 straight. Meetings average 45.3 points. SF are 26-24-1 ATS in the series.

Previous meetings
SeasonMatchupScoreWinner
2026 · W3ARI @ SF30–36SF
2025 · W11SF @ ARI41–22SF
2025 · W3ARI @ SF15–16SF
2024 · W18SF @ ARI24–47ARI
2024 · W5ARI @ SF24–23ARI
2023 · W15SF @ ARI45–29SF
2022 · W18ARI @ SF13–38SF
2022 · W11SF @ ARI38–10SF

Possession by possession

How it unfolded

Every drive: who had the ball, how far it went, how it ended, and the score as it settled.

Drive-by-drive log
BallStartPlaysYardsResultARI–SF
ARIQ1 15:0038Punt0–0
SFQ1 13:23955Touchdown0–7
ARIQ1 9:07822Punt0–7
SFQ1 4:23975Touchdown0–14
ARIQ2 14:141444Field goal3–14
SFQ2 8:14575Touchdown3–21
ARIQ2 5:221392Touchdown10–21
SFQ2 0:2300End of half10–21
SFQ3 15:00741Punt10–21
ARIQ3 10:371294Touchdown16–21
SFQ3 4:12875Touchdown16–28
ARIQ4 14:221042Punt16–28
SFQ4 9:131576Touchdown16–35
ARIQ4 1:591160Turnover on downs16–35
SFQ4 0:0700End of half16–35

Box score

Individual performances

Cardinals

Passing

PlayerC/AttYdsTDINT
Joshua Dobbs28/4126520

Rushing

PlayerCarYdsAvgTD
James Conner11524.70
Joshua Dobbs12484.00
Emari Demercado133.00

49ers

Passing

PlayerC/AttYdsTDINT
Brock Purdy20/2128310

Rushing

PlayerCarYdsAvgTD
Christian McCaffrey201065.33
Jordan Mason3103.30
Deebo Samuel Sr.362.00
Brock Purdy200.01
Sam Darnold1-1-1.00

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 +156.8%3.1%4.9%3.5%3.5%2.9%2.5%

Positive margins favour 49ers; negative favour Cardinals.

Half-point at risk

1.47%

outcomes that flip if the line moves 0.5

Model home win

73.0%

Expected total

48.1est.

Model

Where the number comes from

Each component is additive, in points of expected margin.

  • Team ratings (opponent-adjusted EPA)+4.51
  • Home-field advantage+1.71
  • Quarterback adjustment+2.89
  • Rest differential+0.24
  • Expected margin+9.34