luckadjusted
NFL Week 9 · 2026

Week 5 2024 · October 6, 2024

Bills at Texans, Week 5 2024: who deserved to win?

The Texans beat the Bills 23–20, and the replays back it up: with the way both teams actually played, the Texans win 8 of 10. The Bills had the bounces: fumble bounces alone were worth 16 points of win probability to the Bills.

Before kickoff it was a pick’em. The biggest swing (Q4, 0:44 left): the Texans were stopped on 3rd & 5, worth 31 points of win probability to the Bills.

Final

Buffalo Bills 20
Houston Texans 23

October 6, 2024 · NRG Stadium · Closing line: Texans −1

Luck index +18 Texans about even · −18 Bills

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. Bills win 2, Texans win 8.

  1. 1 BUF 33 HOU 20
  2. 2 BUF 20 HOU 17
  3. 3 BUF 30 HOU 33
  4. 4 BUF 30 HOU 36
  5. 5 BUF 14 HOU 23
  6. 6 BUF 20 HOU 33
  7. 7 BUF 16 HOU 31
  8. 8 BUF 17 HOU 36
  9. 9 BUF 6 HOU 29
  10. 10 BUF 17 HOU 48

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

Bills win 18% of them, Texans 82%, counting the 1% still level after regulation as half each. The line is what actually happened: Texans by 3.

Show as a table
Final margin in the replaysShare of replays
Bills by 17+2.1%
Bills by 9–165.0%
Bills by 1–810.8%
Level after regulation1.2%
Texans by 1–823.3%
Texans by 9–1620.3%
Texans by 17+37.3%

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 +2.2 points to the Texans: the final margin was Texans by 3, without the luck Texans by 0.8. 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.

  • T. Bass, 38 yds made · 91% expected
  • K. Fairbairn, 50 yds made · 73% expected
  • K. Fairbairn, 47 yds made · 80% expected
  • T. Bass, 33 yds made · 94% expected
  • K. Fairbairn, 59 yds made · 64% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Bills 4 for 25 yards, Texans 7 for 65 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 half toward luck; pre-snap fouls, which repeat, don’t count. How calls are valued

WhenFlagWin probability for
Q1 12:04 Offensive Holding on the Bills, 10 yards, wiping out the play +7% HOU +2.1 pts
Q1 6:51 False Start on the Bills (Keon Coleman), 5 yards · pre-snap 0% BUF +0.3 pts
Q1 2:07 False Start on the Bills, 5 yards · pre-snap +4% HOU +0.6 pts
Q2 14:50 False Start on the Bills (Baylon Spector), 5 yards · pre-snap +1% HOU +0.3 pts
Q3 14:23 Taunting on the Texans (Dalton Schultz), 15 yards +1% BUF +1.2 pts
Q3 9:56 Unnecessary Roughness on the Texans (Jalen Pitre), 15 yards +1% BUF +1.4 pts
Q3 7:35 False Start on the Texans (Dare Ogunbowale), 5 yards · pre-snap +2% BUF +0.7 pts
Q3 3:35 Offensive Holding on the Texans, 10 yards, wiping out the play +6% BUF +1.7 pts
Q3 1:26 Illegal Touch Kick on the Texans, 5 yards +2% BUF +0.5 pts
Q3 0:32 Defensive Holding on the Texans (Tim Settle), 5 yards +1% BUF +0.2 pts
Q4 0:44 Intentional Grounding on the Texans (C.J. Stroud), 10 yards +13% BUF +0.9 pts

Bills penalties, every game · Texans penalties, every game · All teams, 2024

When it happened

Texans’ chance of winning

As low as 41% 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 Texans were ahead in it, below while the Bills were.
#WhenWhat happenedWin probability forNext drive
1 Q1 5:06 The Texans converted 3rd & 53rd & 4th downs · 41% expected +7% HOU HOU: Touchdown
2 Q4 10:43 The Texans converted 3rd & 73rd & 4th downs · 34% expected +8% HOU HOU: Turnover
3 Q4 4:29 The Texans fumbled and the Bills recoveredFumble bounces · loose balls are close to 50/50 +16% BUF HOU: Punt
4 Q4 3:30 The Bills were stopped on 3rd & 103rd & 4th downs · 30% expected +8% HOU BUF: Field goal
5 Q4 2:33 The Texans converted 3rd & 63rd & 4th downs · 38% expected +15% HOU HOU: Punt
6 Q4 1:52 The Texans converted 3rd & 103rd & 4th downs · 28% expected +16% HOU HOU: Punt
7 Q4 0:44 The Texans were stopped on 3rd & 53rd & 4th downs · 42% expectedIntentional Grounding on the Texans (C.J. Stroud), 10 yardsJudgment calls · 2 flags in 1327 snaps before, position avg 1 per 658 +31% BUF HOU: Punt
8 Q4 0:02 K. Fairbairn made a 59-yard field goalKicks · 64% expected for him, 38 of 54 from 45+ before +20% HOU –

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.

  • Tytus Howard (HOU T), out · 0.8 pts
  • Joe Mixon (HOU RB), out · 0.4 pts
  • Derek Barnett (HOU DE), out · 0.3 pts
  • Christian Harris (HOU LB), out (IR) · 0.2 pts
  • Kurt Hinish (HOU DT), out (IR) · 0.2 pts
  • Taron Johnson (BUF CB), out · 0.9 pts
  • Khalil Shakir (BUF WR), out · 0.7 pts
  • Ed Oliver (BUF DT), out · 0.5 pts
  • Taylor Rapp (BUF SS), out · 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

Bills 42% · Texans 58%

Final margin
Texans by 3
Luck in points
2.2 for the Texans
Luck-adjusted margin
Texans by 0.8
Replay with same day's form
Bills 18% · Texans 82% unchanged: why
How much of each is luck?

0% treats it as skill, 100% as pure luck. The tick is our fit.

What counts

None by default: our tests measured no carryover after a lucky break. Slide it up to count a break for more than its own swing. 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 5 2024 games · Bills · Texans

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