luckadjusted
NFL Week 9 · 2026

Week 12 2025 · November 20, 2025

Bills at Texans, Week 12 2025: who deserved to win?

The Texans beat the Bills 23–19, but the replays call it close to a coin flip: with the way both teams played, the Texans win 5 of 10.

Before kickoff the Bills were 66% favorites. The biggest swing (Q4, 0:51 left): the Bills converted 4th & 27, worth 33 points of win probability to the Bills.

Final

Buffalo Bills 19
Houston Texans 23

November 20, 2025 · NRG Stadium · Closing line: Bills −5.5

Luck index +46 Texans lucky · −46 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 5, Texans win 5.

  1. 1 BUF 46 HOU 24
  2. 2 BUF 31 HOU 17
  3. 3 BUF 31 HOU 23
  4. 4 BUF 13 HOU 9
  5. 5 BUF 19 HOU 17
  6. 6 BUF 17 HOU 20
  7. 7 BUF 17 HOU 24
  8. 8 BUF 27 HOU 38
  9. 9 BUF 20 HOU 36
  10. 10 BUF 12 HOU 38

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 46% of them, Texans 54%, counting the 5% still level after regulation as half each. The line is what actually happened: Texans by 4.

Show as a table
Final margin in the replaysShare of replays
Bills by 17+10.5%
Bills by 9–1612.8%
Bills by 1–822.2%
Level after regulation4.8%
Texans by 1–822.1%
Texans by 9–1615.9%
Texans by 17+11.7%

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 +1.3 points to the Bills: the final margin was Texans by 4, without the luck Texans by 5.3. 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.

  • K. Fairbairn, 24 yds made · 99% expected
  • M. Prater, 44 yds made · 85% expected
  • K. Fairbairn, 43 yds made · 86% expected
  • K. Fairbairn, 26 yds made · 98% expected
  • M. Prater, 38 yds made · 92% expected
  • Extra point missed · 94% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Bills 6 for 54 yards, Texans 5 for 40 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 14:04 Offensive Holding on the Bills (Jordan Hancock), 10 yards +3% HOU +0.9 pts
Q1 4:32 Offensive Holding on the Bills (Jackson Hawes), 10 yards +3% HOU +0.8 pts
Q2 8:47 Face Mask on the Bills (Deone Walker), 15 yards +5% HOU +1.8 pts
Q2 6:09 Illegal Contact on the Bills (Taron Johnson), 5 yards +3% HOU +0.7 pts
Q2 3:41 Illegal Blindside Block on the Texans (Derek Barnett), 15 yards +4% BUF +0.9 pts
Q3 11:11 Ineligible Downfield Pass on the Texans, 5 yards, wiping out the play +4% BUF +1.3 pts
Q3 10:20 Offensive Holding on the Texans, 10 yards, wiping out the play +2% BUF +1.7 pts
Q3 9:15 Offensive Holding on the Bills (Cameron Lewis), 9 yards +3% HOU +0.8 pts
Q3 5:58 False Start on the Texans (E.J. Speed), 5 yards · pre-snap +3% BUF +0.5 pts
Q3 1:23 Delay of Game on the Texans, 5 yards · pre-snap +1% BUF +0.8 pts
Q4 0:24 False Start on the Bills, 5 yards · pre-snap +10% HOU +0.3 pts

Bills penalties, every game · Texans penalties, every game · All teams, 2025

When it happened

Texans’ chance of winning

As low as 29% 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 10:46 The Bills converted 3rd & 83rd & 4th downs · 32% expected +6% BUF BUF: Touchdown
2 Q2 9:48 K. Shakir dropped a catchable passDrops · 4 drops on 220 catchable balls before this +8% HOU BUF: Field goal
3 Q2 1:56 Return touchdown by the BillsSpecial teams +21% BUF BUF: Touchdown
4 Q4 10:14 The Bills were stopped on 4th & 13rd & 4th downs · 74% expected +9% HOU BUF: Field goal
5 Q4 7:56 The Bills converted 3rd & 123rd & 4th downs · 25% expected +11% BUF BUF: Field goal
6 Q4 0:51 The Bills converted 4th & 273rd & 4th downs · 15% expected +33% BUF BUF: Turnover
7 Q4 0:28 The Bills were stopped on 3rd & 13rd & 4th downs · 74% expected +9% HOU BUF: Turnover
8 Q4 0:24 The Bills threw an interception-worthy pass, and it was pickedInterceptions · defenses catch 54% of interception-worthy throwsFalse Start on the Bills, 5 yardsPre-snap flags +25% HOU BUF: End of game

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.

  • C.J. Stroud (HOU QB), out, replaced by d.mills · 4.7 pts
  • Jalen Pitre (HOU S), out · 0.5 pts
  • M.J. Stewart (HOU S), out (IR) · 0.2 pts
  • Keon Coleman (BUF WR), out · 0.5 pts
  • Taylor Rapp (BUF S), out (IR) · 0.5 pts
  • Ed Oliver (BUF DT), out (IR) · 0.4 pts
  • Michael Hoecht (BUF 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

Bills 32% · Texans 68%

Final margin
Texans by 4
Luck in points
1.3 for the Bills
Luck-adjusted margin
Texans by 5.3
Replay with same day's form
Bills 46% · Texans 54% 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 12 2025 games · Bills · Texans

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