Probetrics — Sports Analytics
NFL slate
Los Angeles Rams
14-6 last yr · #3 Elo
at
Sun, Dec 13, 4:25 PM ET
Levi's Stadium
San Francisco 49ers
13-6 last yr · #9 Elo
Spread Total Moneyline

The read

On rating alone Los Angeles Rams are 2.2 points better (#3 vs #9 of 32), and SF add 0.0 for home field. The clearest mismatch is the rushing game: LAR rushing ranks #4, SF defends it at #23; the other way SF #13 into LAR's #7.

Who has the edge

Rating
Slight edge
LAR
LAR rated 2.2 points better on Elo (#9 vs #3).
Home & rest
Even
SF gets 0.0 points for home field.
Quarterback
not priced
Usual starters on both sides — Brock Purdy and Matthew Stafford — no adjustment.
Passing game
Clear edge
LAR
LAR passing ranks #2, SF defends it at #25; the other way SF #8 into LAR's #11.
context · not in the margin
Rushing game
Clear edge
LAR
LAR rushing ranks #4, SF defends it at #23; the other way SF #13 into LAR's #7.
context · not in the margin
Third down & red zone
Slight edge
SF
SF third-down conversion ranks #1, LAR defends it at #12; the other way LAR #23 into SF's #14.
context · not in the margin
Form (last 5)
Clear edge
LAR
SF −3.2 per game over the last five, LAR +3.2.
context · not in the margin
Market
not priced
No line yet.
context · not in the margin

The margin, factor by factor

Los Angeles RamsSan Francisco 49ers
1602 Elo · #3
RatingThe Elo gap in points — the model's core read on who is better, before the situational pieces below.
LAR +2.2 pts
1554 Elo · #9
road
Home field
not priced
home
Rest
even
Stafford · +7.1 EPA/g
QuarterbackStarter's value against what the team usually gets at quarterback. Only moves when someone other than the usual starter plays.
even
Purdy · +6.7 EPA/g
+6.8 pts vs SF D
Offense vs defenseEach offense's scoring rating against the other defense's — what drives the model total. Shown as an edge, though the winner call runs on Elo.
LAR +3.9 pts
+2.9 pts vs LAR D
L W W W L · +3.2
Form (last 5)Average margin over the last five games. Already inside the ratings — listed so you can see when recent form and the rating disagree.
LAR +3.2 pts
L W L W W · −3.2
7 out/IR
InjuriesCount of players listed Out or on IR. Not priced beyond the quarterback.
not priced
9 out/IR
MarketThe consensus spread, read as points. Compare with the model margin above it.
not priced

Bars are in points toward the favored side. Blue factors are inside the model's margin; grey ones are context it does not add on top (form and offense/defense are already in the ratings; injuries beyond the quarterback are not priced).

Dissect the matchup

nflverse play-by-play + FTN charting · 2025 season (last season until three games are in)

Biggest mismatches

  • LAR rush success rate (#1) against a SF defense ranked #32 at stopping it
  • LAR interception rate (#1) against a SF defense ranked #31 at stopping it
  • LAR sack rate (#3) against a SF defense ranked #32 at stopping it
  • LAR turnovers / game (#3) against a SF defense ranked #28 at stopping it
  • LAR defense (#6 takeaways / game) against a SF offense ranked #31

A mismatch is a rank gap of at least a fifth of the league between an offense and the defense it faces on the same measure. Descriptive rows (pass rate, pace, direction) are shown for reading the game, not ranked. ▲▼ mark where the last three games sit clearly above or below the season number, in the direction that helps that side.

Los Angeles Rams offense vs San Francisco 49ers defense

ranks of 32
LAR offSF defEdge
Identity
Pass rate / Pass rate facedDropbacks as a share of plays. On the defense column: what opponents do against them.60%60%·
Early-down pass rateFirst and second down only — the cleanest read on run-heavy vs pass-heavy.55%57%·
Neutral-script pass rateEarly downs with win probability between 20% and 80%: intent, not catch-up mode.60%56%·
Pass rate over expectedHow much more (or less) a team passes than the down, distance, score and clock predict. nflverse xpass.+2.5%−2.3%·
Seconds per playTime of possession divided by plays — lower is faster.29.129.8·
No-huddle7%11%·
Shotgun42%66%·
Play-action rate / Play-action facedShare of dropbacks with a play fake (FTN charting).32%23%·
RPO rate / RPOs faced0%6%·
Screen rate / Screens faced6%9%·
Pre-snap motion / Motion faced63%54%·
Blitzes faced / Blitz rateFive or more pass rushers (FTN). On the offense column: how often opponents blitz them.29%22%·
Pass rushers faced / Avg pass rushers4.344.27·
Passing
EPA / dropbackThe single best pass-efficiency number; on the defense column, what they allow.+0.22#2+0.14#25LAR
Pass success rate51%#449%#25LAR
Explosive pass rateDropbacks gaining 20+ yards.11.5%#16.9%#6·
Yards / dropback7.3#26.4#21LAR
Depth of target (aDOT)Average air yards per attempt — how far downfield they throw, or get thrown at.9.77.9·
Deep-ball rate (20+ air)16%12%·
Short throws (≤5 air)50%54%·
Completion % over expectednflverse CPOE, per attempt. Defense column: what they allow.+0.7#15+2.1#24LAR
YAC / completion4.9#234.6#5SF
Sack rate / Sack rate generatedSacks per dropback. Lower is better for an offense; the defense column shows sacks they create.3.9%#33.4%#32LAR
Scramble rate1.2%4.5%·
Interception rate / Interceptions forced1.3%#10.9%#31LAR
Throws left / middle / rightDirection shares are shown in full on the row.L 35 · M 22 · R 43L 41 · M 20 · R 40·
Rushing
EPA / rush+0.04#4−0.02#23LAR
Rush success rate50%#148%#32LAR
Explosive rush rateRushes of 10+ yards.11.4%#68.6%#8·
Yards / rush4.9#24.4#22LAR
Runs left / middle / rightL 32 · M 32 · R 36L 30 · M 28 · R 42·
Situational
Third-down conversion38%#2340%#14SF
Red-zone touchdown rateDrives reaching the 20 that end in a touchdown.64%#756%#14LAR
Turnovers / game / Takeaways / game0.80#30.74#28LAR
Plays / game6360·

San Francisco 49ers offense vs Los Angeles Rams defense

ranks of 32
SF offLAR defEdge
Identity
Pass rate / Pass rate facedDropbacks as a share of plays. On the defense column: what opponents do against them.59%62%·
Early-down pass rateFirst and second down only — the cleanest read on run-heavy vs pass-heavy.55%58%·
Neutral-script pass rateEarly downs with win probability between 20% and 80%: intent, not catch-up mode.58%55%·
Pass rate over expectedHow much more (or less) a team passes than the down, distance, score and clock predict. nflverse xpass.−0.7%−4.1%·
Seconds per playTime of possession divided by plays — lower is faster.29.328.7·
No-huddle4%11%·
Shotgun55%66%·
Play-action rate / Play-action facedShare of dropbacks with a play fake (FTN charting).22%20%·
RPO rate / RPOs faced1%7%·
Screen rate / Screens faced6%8%·
Pre-snap motion / Motion faced67%56%·
Blitzes faced / Blitz rateFive or more pass rushers (FTN). On the offense column: how often opponents blitz them.21%20%·
Pass rushers faced / Avg pass rushers4.184.17·
Passing
EPA / dropbackThe single best pass-efficiency number; on the defense column, what they allow.+0.13#8−0.02#11·
Pass success rate52%#345%#14SF
Explosive pass rateDropbacks gaining 20+ yards.8.0%#158.0%#16·
Yards / dropback6.9#86.1#14SF
Depth of target (aDOT)Average air yards per attempt — how far downfield they throw, or get thrown at.7.68.0·
Deep-ball rate (20+ air)10%11%·
Short throws (≤5 air)53%51%·
Completion % over expectednflverse CPOE, per attempt. Defense column: what they allow.+4.7#3−0.9#10SF
YAC / completion4.6#284.7#7LAR
Sack rate / Sack rate generatedSacks per dropback. Lower is better for an offense; the defense column shows sacks they create.4.3%#46.6%#13SF
Scramble rate4.9%4.1%·
Interception rate / Interceptions forced3.0%#282.8%#9LAR
Throws left / middle / rightDirection shares are shown in full on the row.L 41 · M 26 · R 34L 38 · M 25 · R 37·
Rushing
EPA / rush−0.04#13−0.09#7LAR
Rush success rate42%#1438%#7LAR
Explosive rush rateRushes of 10+ yards.8.2%#257.6%#5LAR
Yards / rush3.7#294.0#11LAR
Runs left / middle / rightL 35 · M 27 · R 38L 33 · M 27 · R 40·
Situational
Third-down conversion51%#138%#12SF
Red-zone touchdown rateDrives reaching the 20 that end in a touchdown.65%#553%#8·
Turnovers / game / Takeaways / game1.42#311.50#6LAR
Plays / game6264·

Route-by-route data (which routes are run and how coverage plays them) is not published anywhere public — it is sold by PFF and NGS. Throw depth, direction, play-action, RPO, screens, motion and pass-rush counts above are the public pieces of the same picture.

Los Angeles Rams · key players

  • Matthew Stafford QB22.7/35.8 · 282 yds/g · 52-9 TD-INT · +0.23 EPA/db
  • Puka Nacua WRQuestionable10.9 tgt/g · 31% share · 108 yds/g · 12 TD · aDOT 10.1
  • Davante Adams WR8.2 tgt/g · 24% share · 57 yds/g · 15 TD · aDOT 13.2
  • Colby Parkinson TE4.1 tgt/g · 12% share · 33 yds/g · 9 TD · aDOT 5.1
  • Tyler Higbee TE3.5 tgt/g · 10% share · 30 yds/g · 3 TD · aDOT 6.9
  • Kyren Williams RB15.2 car/g · 72 yds/g · 4.7 ypc · 12 TD · +0.03 EPA/car
  • Blake Corum RB8.6 car/g · 43 yds/g · 5.1 ypc · 6 TD · +0.08 EPA/car

2025 season, per game. Targets ranked by volume, rushers by carries.nflverse weekly player stats. Target share is the player's average share of his team's targets in the games he played. A player who changed teams carries his own games from last season.

San Francisco 49ers · key players

  • Brock Purdy QB20.9/31.1 · 234 yds/g · 22-13 TD-INT · +0.16 EPA/db
  • Jauan Jennings WR5.8 tgt/g · 19% share · 42 yds/g · 9 TD · aDOT 10.3
  • George Kittle TEQuestionable5.9 tgt/g · 20% share · 53 yds/g · 7 TD · aDOT 6.7
  • Kendrick Bourne WR3.7 tgt/g · 11% share · 37 yds/g · 0 TD · aDOT 11.3
  • Ricky Pearsall WR5.5 tgt/g · 17% share · 53 yds/g · 0 TD · aDOT 13.8
  • Christian McCaffrey RBQuestionable17.7 car/g · 68 yds/g · 3.8 ypc · 10 TD · −0.08 EPA/car
  • Brian Robinson RB5.6 car/g · 24 yds/g · 4.3 ypc · 2 TD · −0.03 EPA/car

2025 season, per game. Targets ranked by volume, rushers by carries.nflverse weekly player stats. Target share is the player's average share of his team's targets in the games he played. A player who changed teams carries his own games from last season.

Season

LARSF
14-6Record13-6
29.9Points for / game24.5
21.3Points against / game22.7
7-1 / 7-5Home / road5-3 / 8-3
12-8Against the spread12-7
12-8Over / underOvers–unders in this team's games. A tendency, not a lean.11-8
L W W W LLast 5L W L W W

Season numbers are from 2025 until this season has games.

Power ratings

LARSF
1602Elo1554
#3 of 32Rank#9 of 32
+5.7Offense ratingPoints per game above league average scored, opponent-adjusted.+2.5
−0.4Defense ratingPoints per game below league average allowed, opponent-adjusted. Positive is good.−1.1
Strength of scheduleMean Elo of opponents faced this season.

Elo drives the winner call. Offense/defense ratings drive the total.

Efficiency

LARSF
0.134EPA / play (offense)Expected points added per offensive play, nflverse. The single best efficiency number.0.060
-0.024EPA / play allowed0.071
282Pass yards / game250
125Rush yards / game105
243Pass yards allowed232
110Rush yards allowed113
0.7 / 1.6Turnovers / takeaways1.2 / 1.0
1.4 / 2.6Sacks allowed / made1.6 / 1.2
21.3First downs / game20.5
35Penalty yards / game37
+7.1 · #3 of 52QB EPA / gameThe listed starter's passing + rushing EPA per game, ranked among starters with three or more games.+6.7 · #7 of 52

Efficiency is from the 2025 season until this one has games. Source: nflverse.

Head to head

2025LAR 42 at SF 26LAR · LAR covered
2025SF 26 at LAR 23SF · SF covered
2024LAR 12 at SF 6LAR · LAR covered
2024SF 24 at LAR 27LAR · LAR covered
2023LAR 21 at SF 20LAR · LAR covered
2023SF 30 at LAR 23SF · LAR covered
2022SF 31 at LAR 14SF · SF covered
2022LAR 9 at SF 24SF · SF covered

How the margin was built

Rating gap
LAR +2.2 pts
Home field
SF +— pts
Rest
Even
Quarterback
Usual starters — no adjustment
Weather / roof
— pts on the total
Model margin
Model total

Market

Spread
Total
Moneyline

Per-book prices appear once the multi-book feed has this game (about a week out).

Los Angeles Rams injuries

  • Alex Johnson CBInjured Reserve
  • Daniel Rickert DEInjured Reserve
  • Eddie Walls III LBInjured Reserve
  • Justin Dedich GInjured Reserve
  • Keagen Trost OTInjured Reserve
  • Keir Thomas II LBInjured Reserve
  • Matthew Caldwell QBInjured Reserve
  • Alaric Jackson OTQuestionable
  • Davis Allen TEQuestionable
  • Myles Garrett DEQuestionable
  • Puka Nacua WRQuestionable
  • Terrance Ferguson TEQuestionable

From ESPN's report. The model prices the quarterback; other absences are context it does not yet price.

San Francisco 49ers injuries

  • Isaac Guerendo RBOut
  • Mykel Williams DEOut
  • Austen Pleasants OTInjured Reserve
  • Brett Toth CInjured Reserve
  • Christian Kirk WRInjured Reserve
  • Nate Hobbs CBInjured Reserve
  • Nick Martin LBInjured Reserve
  • Nick Zakelj OTInjured Reserve
  • Sam Okuayinonu DTInjured Reserve
  • Christian McCaffrey RBQuestionable
  • De'Zhaun Stribling WRQuestionable
  • Ephesians Prysock CBQuestionable

From ESPN's report. The model prices the quarterback; other absences are context it does not yet price.

Informational only. Winner probabilities are backtested and calibrated; spread and total calls are tracked leans. 21+, 1-800-GAMBLER.