luckadjusted

Week 5 2019 · October 6, 2019

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

Jets at Eagles, Week 5 2019: who deserved to win?

The Eagles beat the Jets 31–6, and it was no fluke: replayed with the way both teams actually played, the Eagles win 10 of 10. The Jets had the bounces: judgment calls alone were worth 5.4 points to the Jets.

Before kickoff the Eagles were 85% favorites. The biggest swing (Q1, 5:15 left): Return touchdown by the Eagles, worth 16 points of win probability to the Eagles.

Final

New York Jets 6
Philadelphia Eagles 31

October 6, 2019 · Lincoln Financial Field · Closing line: Eagles −14

Luck index +1 Eagles about even · −1 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 0, Eagles win 10.

  1. 1 NYJ 10 PHI 14
  2. 2 NYJ 16 PHI 24
  3. 3 NYJ 10 PHI 22
  4. 4 NYJ 3 PHI 19
  5. 5 NYJ 3 PHI 21
  6. 6 NYJ 6 PHI 27
  7. 7 NYJ 3 PHI 27
  8. 8 NYJ 0 PHI 27
  9. 9 NYJ 6 PHI 37
  10. 10 NYJ 3 PHI 40

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 1% of them, Eagles 99%. The line is what actually happened: Eagles by 25.

Show as a table
Final margin in the replaysShare of replays
Jets by 17+0.0%
Jets by 9–160.1%
Jets by 1–80.7%
Level after regulation0.3%
Eagles by 1–83.9%
Eagles by 9–1611.8%
Eagles by 17+83.4%

Where the luck was

Take the luck out

The final margin was Eagles by 25. Remove the luck, one kind at a time, and it becomes Eagles by 25.7.

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.

  • S. Ficken, 55 yds missed · 61% expected
  • J. Elliott, 28 yds made · 97% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

When it happened

Eagles’ chance of winning

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 Eagles were ahead in it, below while the Jets were.
#WhenWhat happenedWin probability forNext drive
1 Q1 13:47 The Jets were stopped on 3rd & 93rd & 4th downs · 25% expected +4% PHI NYJ: Punt
2 Q1 11:37 The Eagles converted 3rd & 13rd & 4th downs · 75% expected +7% PHI PHI: Touchdown
3 Q1 9:17 The Eagles converted 3rd & 53rd & 4th downs · 43% expected +3% PHI PHI: Touchdown
4 Q1 8:37 The Eagles fumbled and recovered it themselvesFumble bounces · loose balls are close to 50/50 +5% PHI PHI: Touchdown
5 Q1 7:48 The Eagles converted 3rd & 13rd & 4th downs · 68% expected +3% PHI PHI: Touchdown
6 Q1 5:52 The Jets were stopped on 3rd & 13rd & 4th downs · 69% expected +4% PHI NYJ: Opp touchdown
7 Q1 5:15 The Jets were stopped on 4th & 13rd & 4th downs · 68% expectedUnnecessary Roughness on the Eagles (Derek Barnett), 15 yardsJudgment calls · 5 flags in 220 snaps before, position avg 1 per 249Return touchdown by the EaglesSpecial teams +16% PHI NYJ: Punt
8 Q2 2:14 The Jets were stopped on 3rd & 103rd & 4th downs · 22% expected +4% PHI NYJ: End of half

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.

  • Ronald Darby (PHI CB), out · 0.5 pts
  • Cre'von LeBlanc (PHI CB), out (IR) · 0.5 pts
  • Avonte Maddox (PHI CB), out · 0.4 pts
  • Sidney Jones (PHI CB), out · 0.2 pts
  • Brandon Shell (NYJ T), out · 0.8 pts
  • Kelechi Osemele (NYJ G), out · 0.5 pts
  • Avery Williamson (NYJ LB), out (IR) · 0.4 pts
  • Quincy Enunwa (NYJ WR), out (IR) · 0.4 pts
  • Brent Qvale (NYJ T), out (IR) · 0.3 pts
  • Sam Darnold (NYJ QB), out, replaced by l.falk · 0.3 pts
  • Jordan Jenkins (NYJ LB), out · 0.2 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 0% · Eagles 100%

Final margin
Eagles by 25
Luck in points
0.7 for the Jets
Luck-adjusted margin
Eagles by 25.7
Replay with same day's form
Jets 1% · Eagles 99% 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 5 2019 games · Jets · Eagles

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