luckadjusted

Week 2 2022 · September 18, 2022

Cardinals at Raiders, Week 2 2022: who deserved to win?

The Cardinals beat the Raiders 29–23 and were the better team on the day: replayed with the same form, they win 7 of 10. The Raiders had the bounces: 3rd & 4th downs alone were worth 3.9 points to the Raiders.

An off day for the Raiders: they played far below what the matchup promised. In a fresh game against the Cardinals they would win 66% of the time; with this day’s form, 34%. The numbers

Before kickoff the Raiders were 66% favorites. The biggest swing (QOT, 4:05 left): Return touchdown by the Cardinals, worth 72 points of win probability to the Cardinals.

Final (OT)

Arizona Cardinals 29
Las Vegas Raiders 23

September 18, 2022 · Allegiant Stadium · Closing line: Raiders −5.5

Luck index +34 Cardinals lucky · −34 Raiders

Each team’s own plays from this game, resampled into new drives 4,000 times: with the way both teams actually played, how often does this performance win? How the replay works

Ten replays. Cardinals win 7, Raiders win 3.

  1. 1 ARI 35 LV 10
  2. 2 ARI 28 LV 10
  3. 3 ARI 33 LV 20
  4. 4 ARI 30 LV 20
  5. 5 ARI 20 LV 13
  6. 6 ARI 27 LV 23
  7. 7 ARI 23 LV 20
  8. 8 ARI 7 LV 10
  9. 9 ARI 20 LV 28
  10. 10 ARI 0 LV 17

Three other ways to ask

Each answers a different question, so none of them replaces the replay above.

The closing betting line, turned into a probability. What everyone knew before the game.

The line plus what this game showed, weighted by how much one game can tell. It stays close to the line because one game says little.

Every kick, fumble bounce, drop, conversion and judgment call redrawn; everything else fixed. The narrowest view of luck.

An off day for the Raiders

They played far below what the matchup promised. In a fresh game against the Cardinals they would win 66% of the time; with this day’s form, 34%.

32 points apart for the Raiders: the gap is how differently this game went from what the two teams usually are.

UnitThis gameUsual levelBetter or worse than usual
Cardinals offenseEPA per play gained −0.11 +0.12 worse by 0.24
Cardinals defenseEPA per play allowed +0.22 +0.14 worse by 0.08
Raiders offenseEPA per play gained +0.22 +0.11 better by 0.12
Raiders defenseEPA per play allowed −0.11 +0.08 better by 0.20

EPA (expected points added) per play on competitive snaps, turnovers left out because they are valued as luck. Usual level: the team’s earlier games this season plus half of last season, pulled toward the league average. One team’s defense and the other team’s offense are the same snaps, so one game can’t fully say whose day it was; it shows how far this one was from both teams’ norms.

How 4,000 replays ended

Cardinals win 66% of them, Raiders 34%, counting the 2% still level after regulation as half each. The line is what actually happened: Cardinals by 6.

Show as a table
Final margin in the replaysShare of replays
Cardinals by 17+15.8%
Cardinals by 9–1620.5%
Cardinals by 1–828.8%
Level after regulation1.5%
Raiders by 1–819.6%
Raiders by 9–1610.0%
Raiders by 17+3.8%

Where the luck was

Take the luck out

The final margin was Cardinals by 6. Remove the luck, one kind at a time, and it becomes Cardinals by 8.9.

Each row takes one kind of luck out of the margin. Color shows which team it helped. Luck shares are the fitted ones (how much of each component is luck).

The kicks

How likely each kicker was to make that kick (his own record, the distance and the weather), and what happened.

  • D. Carlson, 32 yds made · 96% expected
  • D. Carlson, 55 yds made · 69% expected
  • D. Carlson, 25 yds made · 99% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

When it happened

Raiders’ chance of winning

As low as 0% and as high as 98%. Numbers mark the biggest luck moments, listed below.

nflfastR’s in-game win probability. It ignores the betting line, so it starts near even. Shaded above the middle while the Raiders were ahead in it, below while the Cardinals were.
#WhenWhat happenedWin probability forNext drive
1 Q1 13:39 The Raiders converted 3rd & 113rd & 4th downs · 23% expected +9% LV LV: Touchdown
2 Q1 7:45 The Raiders converted 3rd & 123rd & 4th downs · 22% expected +9% LV LV: Touchdown
3 Q2 3:36 Defensive Holding on the Raiders, 5 yards, wiping out the playJudgment calls +8% ARI ARI: Turnover
4 Q4 0:05 The Cardinals converted 4th & 33rd & 4th downs · 44% expected +20% ARI ARI: Touchdown
5 Q4 0:00 The Cardinals’ two-point try was good3rd & 4th downs · 47% expectedDelay of Game on the Cardinals, 5 yardsPre-snap flags +20% ARI ARI: Turnover on downs
6 QOT 4:45 The Raiders converted 3rd & 33rd & 4th downs · 49% expectedThe Raiders fumbled and recovered it themselvesFumble bounces · loose balls are close to 50/50 +41% LV LV: Opp touchdown
7 QOT 4:11 The Raiders got away with an interception-worthy throwInterceptions · 48% expected to stay out of the defense's hands +19% LV LV: Opp touchdown
8 QOT 4:05 The Raiders fumbled and the Cardinals recoveredFumble bounces · loose balls are close to 50/50Return touchdown by the CardinalsSpecial teams +72% ARI –

Missing players

Key players (usually on the field for half the snaps or more) who missed this game or part of it, valued by position and quality. The same players are missing in every replay, so this counts as luck in points only.

  • Brandon Parker (LV T), out (IR) · 0.5 pts
  • Andre James (LV C), out · 0.4 pts
  • Denzel Perryman (LV LB), out · 0.3 pts
  • DeAndre Hopkins (ARI WR), out (IR) · 1.1 pts
  • Antoine Wesley (ARI WR), out (IR) · 0.5 pts

Adjust the assumptions

Disagree with how much of a fumble bounce or a pass interference call is luck? Change it and the coin-flip replay reruns in your browser.

Only coin-flips re-rolled

Cardinals 81% · Raiders 19%

Final margin
Cardinals by 6
Luck in points
2.9 for the Raiders
Luck-adjusted margin
Cardinals by 8.9
Replay with same day's form
Cardinals 66% · Raiders 34% unchanged: why
How much of each is luck?

0% treats it as skill, 100% as pure luck. The tick is our fit.

What counts

We tested momentum on 19,000 lucky breaks and found none, so it's off by default. Why

Flip a play

Force the other outcome, in this game and in every replay: a made kick becomes a miss, a stop becomes a conversion, a flag goes the other way.

About these numbers

Play-by-play and win probability from nflfastR via nflverse; kicks valued against each kicker’s own record; drops and interception-worthy throws from FTN charting; injuries from snap counts and injury reports.

Methodology and validation · All Week 2 2022 games · Cardinals · Raiders

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