2021 · Week 18 · Division

Final / OT

49ers

San Francisco

QB Jimmy Garoppolo

27·24

Rams

Los Angeles

QB Matthew Stafford

SoFi Stadium · dome · matrixturf

Closing spread

LA -3

Total

46.5

Model margin

+1.5est.

LA perspective

Push chance

7.5%est.

the line sits on a key number

Availability

The injury report

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

49ers

Rams

Win probability

  • Rams
  • 49ers

How each play moved the game.

Rams 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 mapRams
  • +0.085EPA / play+0.082
  • 45.5%Success rate46.6%
  • +0.174EPA / dropback+0.183
  • -0.024EPA / rush-0.089
  • 10.9%Explosive rate10.3%
  • +1.73CPOE-0.40
  • 40.6%Third-down rate42.6%
  • 74.8%Red-zone TD rate63.0%
  • 2.30Points / drive2.32
  • 2.0%Turnover rate2.1%

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 31–24–1 since 1999

Meetings average 43.4 points. LA are 23-31-2 ATS in the series.

Previous meetings
SeasonMatchupScoreWinner
2026 · W1SF @ LA27–7SF
2025 · W10LA @ SF42–26RAMS
2025 · W5SF @ LA26–23SF
2024 · W15LA @ SF12–6RAMS
2024 · W3SF @ LA24–27RAMS
2023 · W18LA @ SF21–20RAMS
2023 · W2SF @ LA30–23SF
2022 · W8SF @ LA31–14SF

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
BallStartPlaysYardsResultSF–LA
LAQ1 15:001267Field goal0–3
SFQ1 6:07715Punt0–3
LAQ1 1:511250Touchdown0–10
SFQ2 10:263-18Punt0–10
LAQ2 8:14319Touchdown0–17
SFQ2 6:44525Turnover0–17
LAQ2 3:43613Punt0–17
SFQ2 0:38461Field goal3–17
SFQ3 15:00775Touchdown10–17
LAQ3 10:3234Punt10–17
SFQ3 8:481174Touchdown17–17
LAQ3 1:463-6Turnover17–17
SFQ3 0:5333Punt17–17
LAQ4 14:47614Punt17–17
SFQ4 12:48860Turnover17–17
LAQ4 7:42977Touchdown17–24
SFQ4 2:293-8Punt17–24
LAQ4 1:5035Punt17–24
SFQ4 1:27583Touchdown24–24
LAQ4 0:2629End of half24–24
SFOT1279Field goal27–24
LAOT613Turnover27–24

Box score

Individual performances

49ers

Passing

PlayerC/AttYdsTDINT
Jimmy Garoppolo23/3231612
Deebo Samuel Sr.1/12410

Rushing

PlayerCarYdsAvgTD
Elijah Mitchell21854.00
Deebo Samuel Sr.8455.61
JaMycal Hasty144.00
Jimmy Garoppolo111.00

Rams

Passing

PlayerC/AttYdsTDINT
Matthew Stafford21/3223832

Rushing

PlayerCarYdsAvgTD
Sony Michel21432.00
Cooper Kupp11818.00
Cam Akers530.60

Receiving

PlayerRecTgtYdsTD
Cooper Kupp771181
Tyler Higbee68552
Van Jefferson23310
Odell Beckham Jr.25180
Cam Akers33100
Sony Michel1460
Ben Skowronek0200

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 +34.2%2.8%7.1%7.5%3.0%4.6%2.9%

Positive margins favour Rams; negative favour 49ers.

Half-point at risk

7.48%

outcomes that flip if the line moves 0.5

Model home win

53.2%

Expected total

44.4est.

Model

Where the number comes from

Each component is additive, in points of expected margin.

  • Team ratings (opponent-adjusted EPA)-0.17
  • Home-field advantage+1.71
  • Quarterback adjustment0.00
  • Rest differential0.00
  • Expected margin+1.53