Rams vs 49ers – Week 18 2023
LA
SF
LA
AWAY
21@20
LA BY 1
FINAL · WEEK 18
2023 SEASON
Levi's Stadium · Santa Clara, CA
SF
HOME
THE SHORT ANSWER
Final: Los Angeles Rams 21, San Francisco 49ers 20.
Going in, our model had favored San Francisco 49ers at 71% win probability, and the pick lost.
Out or doubtful: 8 Rams, 6 49ers.
Model confidence: SF 71%Our line: SF -7.3
ODDS
SPREAD
SF -5.5
MARKET SPREAD · MARKET AVG
SF -7.3
OUR LINE
MISSED
VS SPREAD
MONEYLINE
SF · OUR WIN PROBABILITY
71%
TEAM COMPARISON2023 SEASON · EFFICIENCY, SCORING, TENDENCIES · RANK IN PARENTHESES · FULL-SEASON NUMBERS, NOT AS OF WEEK 18
+0.048Net EPA / play+0.255
+0.039 (9)Offense EPA / play+0.174 (1)
-0.009 (22)Defense EPA / play-0.082 (7)
44.7% (8)Offense success %51.1% (1)
GAME NARRATIVE
SF B-tier pick misses. LA takes it.
MISSED
Model picked SF but LA won. Projected margin was 7.3, the model overestimated by 8.3 points.
ATS MISS
Missed the spread by 6.5 points.
DRAMATIC
The win probability swung past 50% 1 time. A competitive game throughout.
Every model misses. The edge comes from the aggregate, not any single game.
SITUATIONAL TRENDS
Historical splits, shown for context only. We tested them: picking the situations that beat break-even in training goes 770–760 (50.3%) out of sample, so they are not a betting signal and are not coloured like one.
LA
Divisional 5-1 ATS (83%)
SF
Road Favorite 6-3 ATS (67%)
GAME WEATHER
VENUE
OUTDOOR
TEMP
52°F
WIND
11 MPH
IN-GAME WIN PROBABILITY
TOP FANTASY SCORERS2023 SEASON
DEEP MATCHUP DATA2023 PRODUCTION BY UNIT
INJURY REPORTWEEK 18
HEAD-TO-HEAD HISTORYLAST 5 MEETINGS
| GAME | SCORE | PICK | RESULT |
|---|---|---|---|
| SF@LAW1 2026 | SF 27, LA 7 | LA | L |
| LA@SFW10 2025 | LA 42, SF 26 | LA | W |
| SF@LAW5 2025 | SF 26, LA 23 | LA | L |
| LA@SFW15 2024 | LA 12, SF 6 | LA | W |
| SF@LAW3 2024 | SF 24, LA 27 | SF | L |
WHAT PRO ADDS
Every stat on this page is free, and so is the model's pick for this game. Pro is the separate question of which games we would actually bet, and at what stake, plus player props, unit sizing, and the full profit-and-loss ledger.
See the Edge
WEEK 18 · OTHER GAMES
Our pick and its win probability, or the final score once the game is played.
COMMON QUESTIONSLA vs SF
Our model takes San Francisco 49ers at 71% win probability, a Tier B pick. The margin models project SF by 7.3. The market has SF at -5.5.
Los Angeles Rams won, LA 21, SF 20. Our model had favored San Francisco 49ers at 71% win probability, and the pick lost.
The market has San Francisco 49ers at -5.5, meaning the book expects San Francisco 49ers to win by 5.5 points.
In Week 18, the Los Angeles Rams were without 8 players (Out or Doubtful) and the San Francisco 49ers were without 6 players (Out or Doubtful).
Sportsbooks have this game at 40.0 combined points. NoPunt's model projects 43.7, 3.7 above the market.
Week 18 of the 2023 season, SUN 4:25 PM.
San Francisco 49ers, SF 27, LA 7 in Week 1 of 2026.
By net EPA per play over the 2023 season, San Francisco 49ers: LA +0.048 against SF +0.255.
