luckadjusted

Week 17 2023 · December 28, 2023

Jets at Browns, Week 17 2023: who deserved to win?

The Browns beat the Jets 37–20, but the Jets played well enough to win it: they take 7 of 10 replays with the same day's form. Luck ran their way: fumble bounces alone were worth 1.6 points to the Browns.

The Browns won on an off day: their defense played far below its usual level. In a fresh game against the Jets they would win 77% of the time; with this day’s form, 28%. The numbers

Before kickoff the Browns were 68% favorites. The biggest swing (Q1, 2:12 left): Return touchdown by the Browns, worth 20 points of win probability to the Browns.

Final

New York Jets 20
Cleveland Browns 37

December 28, 2023 · FirstEnergy Stadium · Closing line: Browns −6.5

Luck index +72 Browns very lucky · −72 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 7, Browns win 3.

  1. 1 NYJ 25 CLE 0
  2. 2 NYJ 24 CLE 6
  3. 3 NYJ 22 CLE 9
  4. 4 NYJ 13 CLE 3
  5. 5 NYJ 10 CLE 3
  6. 6 NYJ 10 CLE 7
  7. 7 NYJ 20 CLE 19
  8. 8 NYJ 21 CLE 24
  9. 9 NYJ 7 CLE 17
  10. 10 NYJ 17 CLE 37

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.

The Browns won on an off day

Their defense played far below its usual level. In a fresh game against the Jets they would win 77% of the time; with this day’s form, 28%.

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

UnitThis gameUsual levelBetter or worse than usual
Jets offenseEPA per play gained +0.14 −0.04 better by 0.19
Jets defenseEPA per play allowed +0.54 +0.03 worse by 0.51
Browns offenseEPA per play gained +0.54 +0.05 better by 0.49
Browns defenseEPA per play allowed +0.14 +0.01 worse by 0.13

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

Jets win 72% of them, Browns 28%, counting the 3% still level after regulation as half each. The line is what actually happened: Browns by 17.

Show as a table
Final margin in the replaysShare of replays
Jets by 17+23.2%
Jets by 9–1622.0%
Jets by 1–824.0%
Level after regulation3.1%
Browns by 1–815.0%
Browns by 9–168.2%
Browns by 17+4.5%

Where the luck was

Take the luck out

The final margin was Browns by 17. Remove the luck, one kind at a time, and it becomes Browns by 17.4.

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.

  • G. Zuerlein, 46 yds made · 79% expected
  • G. Zuerlein, 31 yds blocked · 96% expected
  • G. Zuerlein, 44 yds made · 81% expected
  • R. Patterson, 33 yds made · 94% expected
  • Extra point missed · 93% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

When it happened

Browns’ chance of winning

As low as 49% 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 Browns were ahead in it, below while the Jets were.
#WhenWhat happenedWin probability forNext drive
1 Q1 14:35 Offensive Pass Interference on the Browns (Elijah Moore), 10 yards, wiping out the playJudgment calls · 4 flags in 2086 snaps before, position avg 1 per 420 +6% NYJ NYJ: Touchdown
2 Q1 14:12 The Browns converted 3rd & 153rd & 4th downs · 18% expected +10% CLE CLE: Touchdown
3 Q1 8:14 The Jets converted 3rd & 53rd & 4th downs · 35% expected +11% NYJ NYJ: Touchdown
4 Q1 6:41 The Browns fumbled and recovered it themselvesFumble bounces · loose balls are close to 50/50 +5% CLE CLE: Touchdown
5 Q1 5:28 The Browns converted 3rd & 123rd & 4th downs · 21% expected +16% CLE CLE: Touchdown
6 Q1 3:28 The Browns were stopped on 4th & 43rd & 4th downs · 33% expected +6% NYJ CLE: Opp touchdown
7 Q1 2:12 The Jets threw an interception-worthy pass, and it was pickedInterceptions · 44% expected to stay out of the defense's handsReturn touchdown by the BrownsSpecial teams +20% CLE NYJ: Punt
8 Q2 2:13 The Browns threw an interception-worthy pass, and it was pickedInterceptions · 44% expected to stay out of the defense's handsReturn touchdown by the JetsSpecial teams +6% NYJ CLE: 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.

  • Amari Cooper (CLE WR), out · 1.1 pts
  • Grant Delpit (CLE SS), out (IR) · 0.5 pts
  • Dawand Jones (CLE T), out (IR) · 0.4 pts
  • Dustin Hopkins (CLE K), out · 0.3 pts
  • Rodney McLeod (CLE FS), out (IR) · 0.2 pts
  • Anthony Walker (CLE LB), out · 0.2 pts
  • Ogbonnia Okoronkwo (CLE DE), out · 0.2 pts
  • Corey Bojorquez (CLE P), out · 0.2 pts
  • Allen Lazard (NYJ WR), out · 0.5 pts
  • Quinton Jefferson (NYJ DE), 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

Jets 1% · Browns 99%

Final margin
Browns by 17
Luck in points
0.4 for the Jets
Luck-adjusted margin
Browns by 17.4
Replay with same day's form
Jets 72% · Browns 28% 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 17 2023 games · Jets · Browns

More from Week 17 2023