luckadjusted

Week 8 2019 · October 27, 2019

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

Browns at Patriots, Week 8 2019: who deserved to win?

The Patriots beat the Browns 27–13 and were the better team on the day: replayed with the same form, they win 7 of 10. The Browns had the bounces: kicks alone were worth 8.5 points to the Browns.

Before kickoff the Patriots were 76% favorites. The biggest swing (Q1, 5:55 left): Return touchdown by the Patriots, worth 27 points of win probability to the Patriots.

Final

Cleveland Browns 13
New England Patriots 27

October 27, 2019 · Gillette Stadium · Closing line: Patriots −9.5

Luck index +28 Patriots lucky · −28 Browns

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. Browns win 3, Patriots win 7.

  1. 1 CLE 22 NE 3
  2. 2 CLE 23 NE 15
  3. 3 CLE 13 NE 10
  4. 4 CLE 24 NE 26
  5. 5 CLE 3 NE 7
  6. 6 CLE 10 NE 17
  7. 7 CLE 6 NE 16
  8. 8 CLE 3 NE 17
  9. 9 CLE 14 NE 33
  10. 10 CLE 17 NE 45

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

Browns win 28% of them, Patriots 72%, counting the 3% still level after regulation as half each. The line is what actually happened: Patriots by 14.

Show as a table
Final margin in the replaysShare of replays
Browns by 17+3.6%
Browns by 9–168.5%
Browns by 1–814.8%
Level after regulation3.3%
Patriots by 1–823.4%
Patriots by 9–1621.7%
Patriots by 17+24.6%

Where the luck was

Take the luck out

The final margin was Patriots by 14. Remove the luck, one kind at a time, and it becomes Patriots by 9.2.

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.

  • M. Nugent, 20 yds made · 99% expected
  • M. Nugent, 29 yds blocked · 96% expected
  • A. Seibert, 38 yds made · 89% expected
  • M. Nugent, 29 yds made · 96% expected
  • M. Nugent, 34 yds missed · 92% expected
  • A. Seibert, 47 yds made · 75% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

When it happened

Patriots’ chance of winning

As low as 50% 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 Patriots were ahead in it, below while the Browns were.
#WhenWhat happenedWin probability forNext drive
1 Q1 11:04 The Patriots converted 3rd & 63rd & 4th downs · 36% expected +11% NE NE: Field goal
2 Q1 9:12 The Patriots converted 4th & 73rd & 4th downs · 33% expected +12% NE NE: Field goal
3 Q1 6:38 M. Nugent made 20-yard field goalKicks · 99% expected for him +5% CLE NE: Opp touchdown
4 Q1 5:55 The Browns fumbled and the Patriots recoveredFumble bounces · loose balls are close to 50/50Return touchdown by the PatriotsSpecial teams +27% NE CLE: Turnover
5 Q2 2:25 M. Nugent had a 29-yard field goal blockedKicks · 96% expected for him +6% CLE NE: Touchdown
6 Q3 8:48 The Browns were stopped on 3rd & 43rd & 4th downs · 41% expected +7% NE CLE: Field goal
7 Q3 8:26 The Patriots converted 3rd & 103rd & 4th downs · 27% expected +10% NE NE: Touchdown
8 Q4 13:33 Offensive Pass Interference on the Browns (Antonio Callaway), 10 yards, wiping out the playJudgment calls · 1 flag in 67 snaps before, position avg 1 per 331 +5% NE NE: 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.

  • Josh Gordon (NE WR), out (IR) · 0.6 pts
  • Shaq Mason (NE G), out · 0.5 pts
  • Stephen Gostkowski (NE K), out (IR) · 0.4 pts
  • Isaiah Wynn (NE T), out (IR) · 0.4 pts
  • Ryan Izzo (NE TE), out · 0.2 pts
  • David Njoku (CLE TE), out (IR) · 0.7 pts
  • Damarious Randall (CLE FS), out · 0.5 pts
  • Christian Kirksey (CLE LB), 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

Browns 17% · Patriots 83%

Final margin
Patriots by 14
Luck in points
4.8 for the Patriots
Luck-adjusted margin
Patriots by 9.2
Replay with same day's form
Browns 28% · Patriots 72% 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 8 2019 games · Browns · Patriots

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