∅ Empty Set Football
Week 1 · 2026 regular season

Arizona Cardinals at Los Angeles Chargers

Sun, Sep 13, 1:25 PM PT

Final Arizona Cardinals won
How the forecasts did
ESF
(pre-game win probability)
ARI 16%
84% LAC

Wrong: ARI won

No betting line was collected for this game; lines start with week 3 of 2026.

After the game

CAP win pct, before and after

Each team's CAP win pct before this game and after it. League average is 0.50; higher is better.

ARI · won
0.03
−0.14 before → 0.03 after (+0.16).
LAC · lost
0.66
0.81 before → 0.66 after (−0.15).
This game

How each offense played

Box score and CAP yards per attempt for each offense. Higher is better for an offense; a CAP value above zero means the offense beat what the situation and this defense would predict.

OffensePlaysBox score
yds/att
CAP
yds/att
CAP
−2 to +2
ARIPass377.5+0.75
ARIRush343.4−0.56
LACPass277.7−0.49
LACRush213.9−1.69

Sacks (raw counts):ARI sacked 1 time · LAC sacked 3 times. Sacks are counted, not CAP-modeled.

Box score yards per attempt count yards as an official box score does: rushing includes scrambles and kneel-downs; passing is gross yards per pass attempt, sacks excluded. CAP yards per attempt measure each play against what the down, distance, field position and this specific defense would predict; above zero means the offense beat that expectation.

Before the game

Unit matchups · entering week 1

Where each side has the edge

Each offense against the defense it faces, in CAP yards per attempt. Offense: higher is better. Defense (yards allowed): lower is better.

Pass: ARI offense vs LAC defense
−0.3523rd
box score —
Edge
LAC
−0.2911th
box score —
Rush: ARI offense vs LAC defense
−0.0320th
box score —
Edge
LAC
−0.0113th
box score —
Pass: LAC offense vs ARI defense
+0.1512th
box score —
Edge
LAC
+0.7029th
box score —
Rush: LAC offense vs ARI defense
−0.3128th
box score —
Even
+0.7029th
box score —

CAP yards per attempt: yards per play relative to what the down, distance, field position and the specific opponent would predict; offense positive is good, defense (allowed) negative is good. Box score: yards per attempt as an official box score counts them, entering week 1.

Week 1

Other games this week

Home team's chance to win before kickoff. Higher means the home team is more likely to win.

Dots: ESF model home win probability.

How to read this page

CAP win pct. A fading average of game scores with a half-life of 7 of the team's own games. A win scores 1 plus the opponent's win pct; a loss scores the opponent's win pct minus 1. Last season carries in. League average is 0.50; higher is better.

CAP yards per attempt. Yards per play relative to what the down, distance, field position and the specific opponent would predict. Offense: higher is better. Defense (yards allowed): lower is better.

Box score yards per attempt. Yards divided by attempts, counted the way an official box score counts them: rushing includes scrambles and kneel-downs; passing is gross yards per pass attempt, sacks excluded.

ESF win probability. A logistic regression on both teams' pre-game CAP win pct, with an intercept for home field.