luckadjusted

Week 14 2024 · December 8, 2024

Jets at Dolphins, Week 14 2024: who deserved to win?

The Dolphins beat the Jets 32–26, but it was a coin flip: replayed with the way both teams played, the Dolphins win 5 of 10. Luck ran their way: kicks alone were worth 14 points of win probability to the Dolphins.

Before kickoff the Dolphins were 68% favorites. The game turned on a luck play (Q4, 0:12 left): J. Sanders made 52-yard field goal, worth 26 points of win probability to the Dolphins.

Final (OT)

New York Jets 26
Miami Dolphins 32

December 8, 2024 · Hard Rock Stadium · Closing line: Dolphins −6.5

Luck index +47 Dolphins lucky · −47 Jets

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. Jets win 5, Dolphins win 5.

  1. 1 NYJ 28 MIA 7
  2. 2 NYJ 26 MIA 13
  3. 3 NYJ 28 MIA 20
  4. 4 NYJ 17 MIA 13
  5. 5 NYJ 16 MIA 14
  6. 6 NYJ 25 MIA 27
  7. 7 NYJ 17 MIA 21
  8. 8 NYJ 16 MIA 24
  9. 9 NYJ 16 MIA 29
  10. 10 NYJ 9 MIA 30

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

Jets win 47% of them, Dolphins 53%, counting the 6% still level after regulation as half each. The line is what actually happened: Dolphins by 6.

Show as a table
Final margin in the replaysShare of replays
Jets by 17+10.0%
Jets by 9–1613.8%
Jets by 1–821.6%
Level after regulation6.3%
Dolphins by 1–823.8%
Dolphins by 9–1614.6%
Dolphins by 17+9.9%

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 +1.2 points to the Dolphins: the final margin was Dolphins by 6, without the luck Dolphins by 4.8. 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.

  • A. Carlson, 28 yds made · 97% expected
  • J. Sanders, 39 yds made · 87% expected
  • J. Sanders, 24 yds made · 98% expected
  • A. Carlson, 30 yds made · 95% expected
  • J. Sanders, 57 yds made · 56% expected
  • A. Carlson, 40 yds made · 85% expected
  • A. Carlson, 42 yds made · 82% expected
  • J. Sanders, 52 yds made · 65% expected
  • Extra point missed · 93% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Jets 10 for 83 yards, Dolphins 8 for 49 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 14:24 Unnecessary Roughness on the Jets (Javon Kinlaw), 15 yards +5% MIA +1.4 pts
Q1 11:14 Defensive Pass Interference on the Jets (D.J. Reed), 0 yards +3% MIA +0.6 pts
Q1 8:23 Defensive Pass Interference on the Dolphins (Jalen Ramsey), 9 yards +6% NYJ +2.0 pts
Q2 13:20 False Start on the Jets (Allen Lazard), 5 yards · pre-snap +2% MIA +0.5 pts
Q2 6:43 Illegal Formation on the Dolphins, 5 yards, wiping out the play · pre-snap +5% NYJ +1.3 pts
Q2 4:51 Offensive Holding on the Jets, 10 yards +2% MIA +0.9 pts
Q2 4:25 Defensive Holding on the Dolphins (Zach Sieler), 5 yards, wiping out the play +8% NYJ +2.9 pts
Q2 1:48 Neutral Zone Infraction on the Dolphins (Chop Robinson), 5 yards · pre-snap +2% NYJ +0.8 pts
Q2 1:48 False Start on the Jets (Kenny Yeboah), 5 yards · pre-snap +2% MIA +1.0 pts
Q2 0:59 False Start on the Jets, 5 yards · pre-snap +2% MIA +0.7 pts
Q2 0:02 Offensive Holding on the Jets (Kene Nwangwu), 0 yards 0% MIA 0.0 pts
Q3 11:20 Defensive Offside on the Dolphins, 5 yards · pre-snap +2% NYJ +0.5 pts
Q3 6:22 Defensive Offside on the Dolphins (Quinton Bell), 5 yards · pre-snap +2% NYJ +0.4 pts
Q3 3:44 Illegal Motion on the Jets (Allen Lazard), 5 yards, wiping out the play · pre-snap +7% MIA +1.3 pts
Q4 11:19 Defensive Pass Interference on the Jets (D.J. Reed), 23 yards +9% MIA +1.4 pts
Q4 6:58 Roughing the Passer on the Jets (Quinnen Williams), 15 yards +7% MIA +1.1 pts
Q4 6:58 False Start on the Dolphins, 5 yards · pre-snap +4% NYJ +0.9 pts
Q4 5:53 Offensive Holding on the Dolphins, 10 yards +8% NYJ +1.4 pts

Jets penalties, every game · Dolphins penalties, every game · All teams, 2024

When it happened

Dolphins’ chance of winning

As low as 11% and as high as 100%. 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 Dolphins were ahead in it, below while the Jets were.
#WhenWhat happenedWin probability forNext drive
1 Q2 12:39 The Jets converted 4th & 43rd & 4th downs · 43% expected +14% NYJ NYJ: Touchdown
2 Q3 12:05 The Jets converted 4th & 23rd & 4th downs · 58% expected +12% NYJ NYJ: Touchdown
3 Q4 9:50 The Dolphins were stopped on 3rd & 13rd & 4th downs · 68% expected +11% NYJ MIA: Touchdown
4 Q4 9:09 The Dolphins converted 4th & 43rd & 4th downs · 39% expected +22% MIA MIA: Touchdown
5 Q4 2:44 The Jets converted 3rd & 13rd & 4th downs · 72% expected +11% NYJ NYJ: Field goal
6 Q4 0:56 A. Carlson made 42-yard field goalKicks · 82% expected for him +12% NYJ NYJ: End of game
7 Q4 0:15 The Dolphins were stopped on 3rd & 43rd & 4th downs · 47% expected +9% NYJ MIA: Field goal
8 Q4 0:12 The game turned hereJ. Sanders made 52-yard field goalKicks · 65% expected for him, 60 of 85 from 45+ before +26% MIA MIA: Touchdown

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.

  • Austin Jackson (MIA T), out (IR) · 0.6 pts
  • Tyus Bowser (MIA LB), out (IR) · 0.1 pts
  • Sauce Gardner (NYJ CB), out · 1.4 pts
  • Tyron Smith (NYJ T), out (IR) · 1.2 pts
  • Breece Hall (NYJ RB), out · 0.4 pts
  • Greg Zuerlein (NYJ K), out (IR) · 0.4 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

Jets 13% · Dolphins 87%

Final margin
Dolphins by 6
Luck in points
1.2 for the Dolphins
Luck-adjusted margin
Dolphins by 4.8
Replay with same day's form
Jets 47% · Dolphins 53% 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 14 2024 games · Jets · Dolphins

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