luckadjusted

Week 12 2021 · November 25, 2021

No FTN charting for this game (drops and interception-worthy throws are not modelled).

Raiders at Cowboys, Week 12 2021: who deserved to win?

The Raiders beat the Cowboys 36–33, but the Cowboys played well enough to win it: they take 6 of 10 replays with the same day's form. Luck ran their way: judgment calls alone were worth 74 points of win probability to the Raiders.

Before kickoff the Cowboys were 70% favorites. The game turned on a luck play (QOT, 6:01 left): Defensive Pass Interference on the Cowboys (Anthony Brown), 33 yards, worth 43 points of win probability to the Raiders.

Final

Las Vegas Raiders 36
Dallas Cowboys 33

November 25, 2021 · AT&T Stadium · Closing line: Cowboys −7

Luck index +63 Raiders very lucky · −63 Cowboys

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. Raiders win 4, Cowboys win 6.

  1. 1 LV 46 DAL 23
  2. 2 LV 31 DAL 17
  3. 3 LV 41 DAL 33
  4. 4 LV 34 DAL 31
  5. 5 LV 34 DAL 37
  6. 6 LV 34 DAL 40
  7. 7 LV 37 DAL 47
  8. 8 LV 44 DAL 57
  9. 9 LV 32 DAL 51
  10. 10 LV 26 DAL 55

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.

How 4,000 replays ended

Raiders win 37% of them, Cowboys 63%, counting the 2% still level after regulation as half each. The line is what actually happened: Raiders by 3.

Show as a table
Final margin in the replaysShare of replays
Raiders by 17+8.8%
Raiders by 9–1611.3%
Raiders by 1–816.7%
Level after regulation1.9%
Cowboys by 1–822.0%
Cowboys by 9–1616.3%
Cowboys by 17+23.1%

Where the luck was

What the luck was worth

Every lucky and unlucky play, weighted by the moment it happened: its swing in win probability, added up by kind. A missed kick in a decided game counts for nothing; the same kick at the end of a tie game can be most of a win.

Swings add up across a game, so in one that went back and forth they can pass 100%. On the scoreboard the same luck was worth +21.1 points to the Raiders: the final margin was Raiders by 3, without the luck Cowboys by 18.1. Luck shares are the fitted ones (how much of each kind 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, 22 yds made · 98% expected
  • G. Zuerlein, 59 yds missed · 60% expected
  • D. Carlson, 46 yds made · 80% expected
  • G. Zuerlein, 29 yds made · 96% expected
  • D. Carlson, 30 yds made · 96% expected
  • D. Carlson, 56 yds made · 65% expected
  • G. Zuerlein, 45 yds made · 81% expected
  • D. Carlson, 29 yds made · 97% expected
  • Extra point missed · 93% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Raiders 14 for 110 yards, Cowboys 14 for 166 yards

Every accepted flag, in order, and what it did to the helped team’s chance of winning at that moment, including any play it wiped out (points on the scoreboard in grey). A flag in a decided game is worth nothing; one at the turn of a close game can be worth most of a win. Judgment calls count toward luck, pre-snap fouls mostly don’t. How calls are valued

WhenFlagWin probability for
Q1 11:14 Illegal Use of Hands on the Raiders (Johnathan Hankins), 5 yards +3% DAL +0.5 pts
Q1 5:29 False Start on the Cowboys, 4 yards · pre-snap +2% LV +0.7 pts
Q1 5:17 Neutral Zone Infraction on the Cowboys (Micah Parsons), 5 yards · pre-snap +1% LV +0.7 pts
Q1 5:11 Offensive Holding on the Raiders, 10 yards +3% DAL +1.6 pts
Q1 4:03 Defensive Pass Interference on the Cowboys (Anthony Brown), 11 yards +9% LV +2.4 pts
Q1 1:42 Defensive Pass Interference on the Cowboys (Anthony Brown), 30 yards +9% LV +3.9 pts
Q1 0:57 Defensive Pass Interference on the Raiders, 8 yards +2% DAL +1.2 pts
Q1 0:53 Offensive Holding on the Cowboys, 10 yards, wiping out the play +10% LV +4.0 pts
Q2 13:57 Defensive Holding on the Cowboys (Trevon Diggs), 5 yards +3% LV +1.2 pts
Q2 7:36 Unnecessary Roughness on the Raiders (Denzel Perryman), 15 yards +1% DAL +1.4 pts
Q2 5:04 Illegal Use of Hands on the Raiders, 11 yards, wiping out the play +7% DAL +3.9 pts
Q3 12:05 Defensive Holding on the Raiders (Casey Hayward), 5 yards +7% DAL +2.1 pts
Q3 10:08 Illegal Block Above the Waist on the Cowboys (Nahshon Wright), 10 yards 0% LV +0.8 pts
Q3 9:03 Roughing the Passer on the Cowboys (Micah Parsons), 15 yards +5% LV +1.8 pts
Q3 7:00 Leverage on the Raiders (Clelin Ferrell), 1 yard 0% LV 0.0 pts
Q3 5:03 Defensive Pass Interference on the Cowboys (Anthony Brown), 17 yards +6% LV +2.7 pts
Q4 12:41 Offensive Holding on the Cowboys, 10 yards, wiping out the play +21% LV +3.7 pts
Q4 11:23 Offensive Holding on the Raiders, 10 yards +6% DAL +1.4 pts
Q4 9:28 Offensive Holding on the Raiders (Foster Moreau), 10 yards +2% DAL +1.4 pts
Q4 5:08 Offensive Holding on the Raiders, 10 yards +2% DAL +1.4 pts
Q4 3:55 Delay of Game on the Raiders, 5 yards · pre-snap +1% DAL +0.2 pts
Q4 2:06 False Start on the Raiders, 5 yards · pre-snap +5% DAL +0.5 pts
QOT 10:00 Illegal Block Above the Waist on the Cowboys, 6 yards 0% LV +0.5 pts
QOT 8:50 Illegal Block Above the Waist on the Raiders (Amik Robertson), 10 yards +6% DAL +0.9 pts
QOT 6:01 Defensive Pass Interference on the Cowboys (Anthony Brown), 33 yards +43% LV +4.2 pts
QOT 4:31 False Start on the Raiders, 5 yards · pre-snap +2% DAL +0.5 pts
QOT 4:31 Neutral Zone Infraction on the Cowboys, 5 yards · pre-snap +2% LV +0.5 pts
QOT 4:31 Neutral Zone Infraction on the Cowboys, 5 yards · pre-snap +10% LV +0.2 pts

Raiders penalties, every game · Cowboys penalties, every game · All teams, 2021

When it happened

Cowboys’ chance of winning

As low as 0% and as high as 55%. 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 Cowboys were ahead in it, below while the Raiders were.
#WhenWhat happenedWin probability forNext drive
1 Q3 7:13 Return touchdown by the CowboysSpecial teams +17% DAL DAL: Touchdown
2 Q4 12:41 Offensive Holding on the Cowboys, 10 yards, wiping out the playJudgment calls +21% LV LV: Field goal
3 Q4 2:54 The Cowboys’ two-point try was good3rd & 4th downs · 47% expected +14% DAL DAL: Field goal
4 Q4 1:57 D. Carlson made 56-yard field goalKicks · 65% expected for him, 15 of 20 from 45+ before +13% LV LV: End of game
5 Q4 0:24 G. Zuerlein made 45-yard field goalKicks · 81% expected for him, 25 of 38 from 45+ before +19% DAL DAL: Punt
6 QOT 8:57 The Cowboys were stopped on 3rd & 43rd & 4th downs · 48% expected +13% LV DAL: Punt
7 QOT 6:01 The game turned hereDefensive Pass Interference on the Cowboys (Anthony Brown), 33 yardsJudgment calls · 5 flags in 1489 snaps before, position avg 1 per 213 +43% LV LV: Field goal
8 QOT 4:31 D. Carlson made 29-yard field goalKicks · 97% expected for himFalse Start on the Raiders, 5 yardsPre-snap flagsNeutral Zone Infraction on the Cowboys, 5 yardsPre-snap flagsNeutral Zone Infraction on the Cowboys, 5 yardsPre-snap flags +13% LV LV: Field goal

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.

  • CeeDee Lamb (DAL WR), out · 1.5 pts
  • Amari Cooper (DAL WR), out (IR) · 1.0 pts
  • Randy Gregory (DAL DE), out (IR) · 0.3 pts
  • Blake Jarwin (DAL TE), out (IR) · 0.3 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

Raiders 11% · Cowboys 89%

Final margin
Raiders by 3
Luck in points
21.1 for the Raiders
Luck-adjusted margin
Cowboys by 18.1
Replay with same day's form
Raiders 37% · Cowboys 63% 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 (not available for this game); injuries from snap counts and injury reports. No FTN charting for this game (drops and interception-worthy throws are not modelled).

Methodology and validation · All Week 12 2021 games · Raiders · Cowboys

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